A very large tree cats

My two cats had a smaller model in this range.
This one is almost perfect.
They sleep on every level, there are several scratching posts.
At the top, they dominate their little world, they can even sleep on the base down, covered with fabric.
The whole is very stable even during their climbs.
Only the hammock is not easy to access, yet I tried to turn it 90 °, but they are not reassured to access.
The niches are appreciated, and the top can accommodate them both.