Love it! It isn't as expensive and is easy to use. I've done two hatches so far and am doing a third currently. But you MUST buy a thermometer/hygrometer for it! I has no hygrometer, which is a necessity, and the thermometer it comes with isn't precise enough to use. However That was easily taken care of. It is pretty big. I have 18 eggs in it currently, but It can hold more. I'd say about 30 if you aren't using an automatic turner. Holds temp pretty well. It heats up, then starts to cool, but starts heating again when it gets about a degree less. I am very happy with this and would recommend this to anyone who doesn't have $200 bucks to spend on an incubator. Just make sure you have a plan if the power goes out. The styrofoam doesn't hold heat well went the power is out.
Some hatch pics.
(And If you buy one and don't for some reason want it, you can send it to me!
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Some hatch pics.