I use the AT&T plan on occasion. It’s great in rural/fringe areas but the speed is nothing to get excited about. Better than nothing though.
1X and no X are definitely nothing to get excited about. I think that the AT&T LTE, even though it’s only a bar or two, would work fine for me. We’re in the boondocks for sure, no electricity unless we run a generator, no cable, no internet (wifi hotspot only), only TV is PBS so we don’t watch (not worth running the generator for). I manage to stay connected, more or less, somehow.