Our cats love this. We have it set up in a big basement room and the top two perches are right at the window level so both always have a cat on them.  We have three cats (ranging from 12-18 pounds) and they all seem to enjoy it.  Only one has claws, but he does use this too, thankfully.  The ivory colour is great as it looks a little classier, and the carpet is actually soft and fizzy and not the rough cheap-o stuff you get on other trees.