No problem at all. I live on a farm in the middle of nowhere that's entirely surrounded by several rows of mature trees. DSL isn't even available at this property. I've lived here for seven years. The evolution of my ISPs has looked like this:

Initially I had Exede (now renamed to Viasat) satellite internet. I had this for a few years. To begin with, it was on a metered connection that had a 22 GB monthly data cap with an unmetered "free zone" from like 2-6 AM. After a couple years of that an unlimited plan became available to me. I didn't like this connection. The initial data cap was overly restrictive and the latency was terrible (600+ ms).

Then, for around four years I had an unlimited Verizon prepaid plan paired initially with this modem:

https://smile.amazon.com/dp/B01N5ASNTE

And later with this modem (I especially like this modem as it can be modified to enable band locking):

https://smile.amazon.com/dp/B07G5KWZ3H

I also utilized this outdoor antenna with this setup:

https://smile.amazon.com/dp/B00J14YEHQ

This configuration was much better than satellite internet. There were no data caps and the latency was generally around 30 ms. Verizon seemed to throttle this connection. I'd get 15 Mbps down and 3 Mbps up during the day and then that throttle would be partially lifted during the night and early morning and I'd get about double those speeds. I thought I'd be on this setup until Starlink became available to me. But, then the trashcan came into my life.

There are also a few services like this available in my area:

https://www.woodstocktel.net/services/woodstock-wave

However, those types of services require a line of sight connection and the trees surrounding my property entirely nullify their viability. While those services are unlimited, the speeds aren't great for the price.

I've only had T-Mobile home internet for a short time, (less than a month) but it's been great so far. With my Verizon home internet solution, I had to do all my own research and purchase my own modems, routers, and antennas. T-Mobile ships you the trashcan and many people are probably able to get great speeds right out of the box without any modifications or antennas. I guess currently I only have a few qualms:

First, I wish the trashcan had stock hookups for an external antenna.

Second, I wish there were more advanced settings and statistics available on the admin panel.

Last, I think the trashcan's thick plastic case with silver paint probably diminishes the efficacy of the unit's internal antennae.

I use these They're basically just 50 Ohm YAGI antennas that cover the frequencies available to me. They're connected to your device by cable and usually require an adapter.

Here's my setup pretty much the same as the Waveform kit I listed before.

I'd only had the trashcan a short while before adding an antenna. I didn't take note of any tower ID because given my remote location I'm almost positive there is only one tower for me to connect to. Where can I find my tower ID?

The trashcan wasn't relocated. In fact, placing it in anything other than a southern window makes me lose connection entirely. Before and after the antenna mod I've always connected to bands 2 and n71.

I actually already have this antenna mounted outside because I was previously using an unlimited Verizon prepaid plan for home internet:

https://smile.amazon.com/dp/B00J14YEHQ

However, my trashcan seems fickle in its willingness to connect. I tried connecting it to that Wilson antenna and sometimes it'd connect with the same speeds and specs as if there was no antenna connected and sometimes it wouldn't connect at all. If I change the trashcan's position or antenna, sometimes I have to reboot several times before it'll finally connect.

I ordered him the Wilson Wideband Directional Antenna found here: https://www.amazon.com/Electronics-Wideband-Directional-700-2700-314411/dp/B00J14YEHQ/ref=sr_1_2?keywords=wilson+yagi&qid=1569347723&s=gateway&sr=8-2

I'm waiting on an adapter to connect the antenna cabling to the LB1120 modem, so I can't give any insight on speeds yet. (I recommended he get two for a MIMO setup, but he would like to try one first before doubling up)

All together, here is what we purchased: AT&T Prepaid Sim ($10) Nighhawk AC1750 Router ($80) Wilson Wideband Directional Antenna (700-2700 MHz, 50 ohm) ($50) LB1120 4G Modem ($100) 32 ft of N Male to RP SMA Male cabling ($15) Connectors to convert to a TS9 plug ($6, part I'm waiting on)

All this for under $275, not too shabby. If he decides to go with the second antenna, add $70-ish. I'll report back once the connector is in on Thursday.

What's your cable run? how far are you from the tower?

I'm 3 miles with trees blocking clean line of site. I tried various indoor antennas without much luck. Ended up mounting duel antennas on the gable end of my house and running 25' cables

setup

I use the AT&T network but the equipment is very similar. You might post in r/NoContract for specifics on TM (modem). You'll want to make sure that the modem you get covers the bands that the cell carrier you're wanting to connect to use. To get the best speeds you'll want a modem that uses carrier aggregation and MIMO antennas.

Once you have the modem figured out the rest of the setup will be the same as mine and a lot of others that use cellular data for their internet.

2 antennas at 90 degrees to one another (polarized) pointing directly at the tower. Pick a good location for the antennas, a more open spot in front of them if you can, roof mounted works great. If you have a metal roof use a gable mount in a place where you don't have to aim the antennas across the roof. 2 appropriate sized cables to minimize signal loss and what ever adapters are needed to connect the cables to your modem.

Cellular modems often don't make great routers, they're often limited by the amount of devices that can connect and range of their WiFi signal. I have my M1 Nighthawk USB tethered for power and data to my Pepwave Surf SoHo home network router.

Hope this helps, good luck.

Just posted pictures in a separate thread. See:
https://www.reddit.com/r/tmobileisp/comments/s7tcrm/dont_overthink_the_antenna_install/
I have intended to mount the antennas outside, but since it is not low-E glass, the antennas work just as well looking out the window.

You can see the antenna just to the right of the divider, at the top of the ridge.

The mount is on a thick scrap of laminated beam from the construction of our house. The mount is: https://smile.amazon.com/gp/product/B006J1WSGI/

The yagi antennas are: https://smile.amazon.com/gp/product/B00J14YEHQ/ which I purchased to test with my Microhard Bullet LTE modem, but are currently connected to the TMHI-Nokia device.

The panel antenna is: https://smile.amazon.com/gp/product/B01NBSLNJ6/ which is currently attached to the Microhard. Yes, the panel antenna is just propped in the window. It is directional, but not highly directional, so pointing it more carefully doesn't help.

The tower is 0.6 miles away, and it has T-Mobile, Verizon, AT&T, and at least one local WISP all on the same tower.

My setup 4G router - MOFI4500-4GXeLTE-SIM4-COMBO 4G/LTE Router AT&T T-Mobile Verizon Embedded SIM with Band 12 https://www.amazon.com/dp/B01EY11K40/ref=cm_sw_r_cp_api_i_ZX-3EbA2N1ETD

Omni ant X 2 - Bingfu 4G LTE Outdoor Wall Mount Waterproof Antenna 5dBi SMA Male Antenna for Verizon AT&T T-Mobile Sprint 4G LTE Router Gateway Modem Mobile Cell Phone Signal Booster Cellular Amplifier Trail Camera https://www.amazon.com/dp/B07R9JGLV5/ref=cm_sw_r_cp_api_i_.W-3EbVGKV8C1

Directional - Wilson Electronics Wideband Directional Antenna 700-2700 MHz, 50 Ohm (314411) https://www.amazon.com/dp/B00J14YEHQ/ref=cm_sw_r_cp_api_i_zT-3EbFZS06S4