My seven month old kitten loves his new cat tree. He has a little difficulty getting up to the second platform. It’s silky carpet over wood and he can’t get any purchase to pull himself up. Currently he jumps from a close chair to that level. He has no trouble getting up to the round snugglers from that point.  The two snugglers seem a little are a little wobbly as they attach with just one screw. If you have a chunky kitty that might be a concern.