We just built this today so we have not had a lot of time to use it but so far so good! It took us a couple of hours to build with two of us because it has many many parts. It is sturdy after completely built. We did run into a snag when one of the pre-drilled holes didn’t have a required part so we improvised and widened the hole with a drill and added a metal nut to use to screw the other piece into. We have two 65 lbs American bullies and they had room to lay down comfortably. We added long ortho beds after taking pictures. It looks so much better than the unsightly crates we had before. We have to crate them at night.