It wasn't bad to auto turn. I forgot a few times. The kids enjoy doing it, though, too so when I work on days when they are home, they are more than thrilled to do it for me. The crank is on the very top back of the incubator. I don't thik I got a good picture of it.
Hatch rate is hard b/c a friend gave me a bunch of eggs and I didn't candle or couldn't candle all of them to see if they were growing b/c they were quite a bit darker. I will say I ended up with 4 1/2 dozen (I think) of hers in the hatching tray and 42 hatched. Again, I don't know how many of the others were not growing.
I had some from ours hatching out at the same time and 13 out of 14 hatched which I was very happy about.
I did use egg cartons in the turning trays simply because I didn't go purchase the "real" thing, yet. hehe I'd bought some last time I had a sportsman and stupidly gave them away. Didn't really want to spend that this time if egg cartons would work just as well and they definitely worked fine for it. No problems at all that I could tell. I've set some more eggs last night and will be doing the same again. Just cannot see spending $ on the hard plastic ones if I don't *need* to.