Pros: Great bed and perch
Cons: None so far
I have the unheated version of this bed, attached to the window in the bedroom. Kitties love to sleep on it at night and use it as a perch in the mornings to see what's happening in the outside world. I've only had it three months but so far it's proved to be very popular.
The legs and base are plastic and I wasn't sure how well it would hold up, but it's plenty strong enough for our 10-12 lb. cats. Very sturdy.
Zoe snoozing on her bed: