The front opening is big enough for my cat to get into, but when it is 3 feet in the air I'm not sure he can make it.
I ended up having to position it next the my couch, which is fine but not what I pictured when purchasing this.

My cat does love getting in it and on it and it is definitely cooler than any carpet cat tree/tower.

Pros: very unique, great material, sturdy
Cons: too tall