Oh boy. Well, I'll start with pros - when it's all put together, it's pretty sturdy and it doesn't look awful. My cat doesn't hate it but she only uses it to eat and use the box... she doesn't sleep or climb on it like her other kitty condos. As for the cons - this thing was a nightmare putting together. Pieces were cut unevenly which led to things fitting together improperly. The screws they provided were not the correct kind - they all stuck out which meant we couldn't put the pieces on top of them. As a result, we had to use a huge drill bit to make the holes bigger so the screws would sit flush. Once all together, it looks okay but we can see where everything is uneven.