I have the Hova 1588 genesis advanced with turner that's flat, rolls the eggs. Am I satisfied with it? As far as how well it works/functions, yes, as far as how well it looks, no. I knew what it was when I ordered it but if I had a do over I wouldn't have. I guess Styrofoam is good insulating, just doesn't look all that durable for the $$.
If I had a do-over I would have built my own, just didn't want to at the time. Had a Bud Light mini fridge give to me for Christmas a few yrs back, BIL won it on a raffle at our gas station and gave it to me, just didn't seem right to convert it to a bator at the time, BUT every time I look at it (I don't use it) in the garage, I think 'dang that would make a nice bator' and I don't like bud, or

bud light. Has a insulated light up glass door so I can see inside.
Incubator warehouse has kits, incukits ready to install for desktop or cabinet homemade bators, really wish I just went with that idea to begin with, think I will someday and try to get something out of that hova.
I see them on Craigslist occasionally, big ones.