It would be the same as having a turner. I have a turner but I know some have said you can still open the incubator to have that fresh air flow and cool down even for just a minute or so. Turning all at once or the turner just helps to not handle all the eggs so much. Turner is good if you are busy or tend to forget..lolI like the concept, because it seems easier. Do the eggs still receive proper air flow though? Also, I'm worried it wouldn't replicate how a broody hen would tend to her clutch of eggs.