I like to hear what people like and dislike about the stuff they build. I built this hatcher and have used it. I still havent finished the trays but none the less it works. My favorite thing about it has to do with the doors. They are removable and makes cleanup a breeze. The size is also nice seeing how I can incubate 200 eggs at one time and have room to hatch them all. Event though ive used to it hatch I had humidity problems. I think the way to fix that would be to add a big pan of water. Ill have to try it out next hatch.