It's very rare where they are all on it at the same time. They mostly like the higher perches.

Russian: YES it's the saaaame one! It's only woobly because of how it's built (the metal tube inside the cat tree has a little half an inch of space, so that it can move up and down when you take it apart and such. But the part that actually touches the ceiling does NOT wobble, it's quiet stable.

For the rest of you, this cat tree was only $30.00 and goes from floor to the ceiling. I got it at Walmart