Good idea poorly executed
The wooden platforms have a few velcro strips, but the cushions don't, and as a result the adhesion factor is zero (0). My poor floof tried to climb the first platform, the cushion immediately slid off, and he fell back. He hasn't approached it since. (He's fine! But understandably distrustful.)
I had the cushions velcroed at my own expense, but the cat still won't climb it, so all I have in the end is extra scratch posts, and storage shelves for my own stuff.