
We are on our first incubation right now, only have had it for three days. SO FAR I absolutely LOVE it. I have had zero problems with it holding humidity. I can keep it wherever I want by filling up the well and adjusting the vents. No problems there. AND it comes with a surface area increasing sponge thingy to put in the well during hatch. I haven't hatched in it yet, that's still about 18 days away (and I will report how it goes). But there is only one hatching tray on the bottom, so I set-staggered my shelves, each one hatching at a different time, so I only have to put one shelf's worth of eggs in the hatcher at any given time.
If your worried about the humidity it has an adaptor you can plug in the automatic humidity control box (I didn't buy one).
So far all the gizmos and electronics on it are super cool. You can adjust the turning, temperature by .2 degrees, and it even has a cooling off feature!
So far it's awesome.
I will definitely report more as time goes on and I get more experience with it.