My cats really like their mansion and I WOULD buy it again.  The price was very good compared to others and it is well made and sturdy.  The top tunnel is too small for them to do anything.  The other thing that I am disappointed in is that the 3rd level is almost directly above the 2nd level so it is too difficult for either of them to get to the 3rd level from the 2nd level but, cat's can jump and that's okay.  They LOVE looking out the window from their mansion and use it every day to play and relax.  My cat, Whisper, even uses the ladder.  Thanks!