I lost my first "real" dehydrator in a sewage flood, so I bought another one exactly like it, the FD-50. It's still going strong. I don't see on Amazon that exact one for sale, but this one is similar:
They also have a smaller one the FD-37 that's cheaper.
American Harvest has been making quality, affordable dehydrators for many years. I bought my first one about 1995.
Also, you can try using fakespot.com/analyze to review the reviews at Amazon, but I wouldn't bother in this case, since I know these are good devices.
I have only had 1 dehydrator; the Nesco FD-75. I bought it just over a year ago and I absolutely love it. It comes with 5 trays but can be expanded to 12 trays. I bought an extra 2 because I need 7 trays to make a 5lb (beginning weight) jerky batch. I use is probably twice a month for jerky, dried fruits, or to dehydrate meals for backpacking. I think the biggest surprise was a backpacking Ratatouille. I made this for backpacking but I've used it more for pot lucks and dips for guests.
It has a temperature control but not a timer which, for me, isn't an issue. If I need a timer then I use one of these timers because I already have 3 of them for other uses. Clean up is easy since the heating and fan are on top. Everything below can be either hand washed or go through the dishwasher.
The best thing about this unit is the price; about $70. This made it a reasonable investment at the time so I could see if I would use the dehydrator like I planned. I didn't want to spend a couple of hundred dollars for something and end up not using it. So far I've used this dehydrator for about 15 months and it looks like it's going to last for a while longer. I haven't had the first issue.
This is the one I use. It's very versatile and works great. For the bigger fruits I've sniped the screen out of one of the trays so that it gives me twice the space on the tray below. Nesco FD-75A Snackmaster Pro Food... https://www.amazon.com/dp/B0090WOCN0?ref=ppx_pop_mob_ap_share