I have a little LG still air with a turner and I like it. It may be one of those things like if all you have ever had is hamburger and you like it, you can't figure out what all the fuss is about steak. Once you have steak, you probably wouldn't want to go back to hamburger.
Really I don't know, but if you crank it up a few days before you set your eggs to give the temp. time to adjust, and it isn't in front of a window, I rarely have to do much adjusting to mine. I do agree you probably want a different thermometer though.