very spacious, lots of room to run around, I like the size. seems sturdy enough. my two young rats are able to get up and down the ramps easily. getting the shelf levels in is a little bit awkward but that seems to be a pretty common theme with wire cages like these. my only real issue was that some of the holes where the screws are meant to go in aren’t drilled properly, so I have several places on the cage where there are no screws because they simply wouldn’t fit. other than that, it’s easy to clean and I like that it is on wheels.