Im on the fence.  I first wrote a not so good review.  My cats, however, are seemingly liking it.  I think its overpriced, but if my cats are happy, Im happy.  I bought it because cat trees that are carpeted can contain harmful chemicals, and one of my cats has developed asthma. Ill update this review later if anything changes as I just received this and put it together less than 24 hrs ago. UPDATE Cats dont fit in the plastic dome nor do they have any interest.  I put one of my cats in there to check it out and its too snug.  They are both average sized cats.