I've been happy with my Note 5. Sure there are some quirks and the battery life could be better but no phone is perfect.

As far as battery life goes, I recommend getting a quick charge battery pack.

I bought one of those and it would make a high pitched wine, start charging for a few seconds, and then would stop. I had it replaced by Amazon and the replacement did the same thing. I tried different usb cords with the same results.

I ended up getting this one: https://www.amazon.com/dp/B018I5H9BQ/ref=cm_sw_r_cp_apa_AR8Gxb313ZY1H

Same brand but it's been working fine for me. Very weird. Both shouldn't have had any issues so I don't know what the deal was.