About these mini fridge incubators... (Same exact thing as the incubators you get from ReptiPro.)
The readout is not accurate AT ALL. Supposedly, the temps inside can be as low as six degrees below what it says it is. I would definitely get a second thermometer to stick in there to be sure. I had to bump the readout to 96 degrees to get the temps I wanted.
I lost two eggs about 15 days into incubation from what I'm assuming was the low temps. The other two made it, but they were about 15 days behind schedule. I thought I had thoroughly researched this incubator in particular, and at the time I didn't find any complaints about the temps.
Good luck with them, though! I had problems with humidity as well, so if you can cover the eggs, I'd definitely do that.