The ventilation door fits perfectly on the coop and it was super easy to install. The only drawback is that you can't leave it on and close the regular/solid door over it for nights when the temp fluctuates day to day here in Chicago in the spring and the fall -- you either have it on for warmer nights or off for colder nights.

Needs a better way to secure screen door than just one latch. Predators could pull it open with only one latch

The product is strong but it needs a better design. The nesting boxes are way too small, I had to remove the middle panels on both sides between the boxes to give them more space and I’m going to have to push up the lid that’s over the nesting boxes by building a frame under it so they have more height in the boxes because the height is too low for regular size chickens. Also the front of the coop had cardboard stuck to it for protection when it arrived but when I removed it paint came of it in two areas on the front of the coop about 2”x3” size. The product can be made a lot better with some attention to details and better design.

Its fantastic. Perfect fit. Had it installed in 5 minutes including opening the box.