I bought 2 of these- one for my house and one for my mom. I wasn’t real impressed with the construction.  No screws- only held together by wooden pegs and glue.  With that being said- assembly was a breeze!
So far my cat has slept in the bottom, but hasn’t scratched at it yet (however it’s still new).  Not sure how long it will last considering the bottom scratch piece just sits at the bottom and isn’t secured.  I also wish there was a way to replace the standing piece after it is all scratched off.  For the money I definitely anticipated more.