Not an ideal home for Guinea Pigs. I was excited about this cage when I first got it because the footprint is small while providing vertical space instead. The first issue we had was with the stairs. The mechanism to attach the stairs is very cheap and the stairs regularly fell down. We eventually used tape to keep them from falling, but even still they fell down on occasion. 
 The other issue we had was being able to clean the cage easily. Unless we completely took the cage apart, it was very hard to reach in and scrub the various levels. We were really never able to get it very clean. 
After about two months of use, we abandoned the cage for a C&C.