"I bought two of these,,,the gold and the black ultimate style as the only way I CAN COMPARE is to try it. Since I signed up for 'bill me later',,,this worked well. Ok, so I just got a Boston Terrier pup and he is 11wks old. Had him for 2 wks now and soon as I set the play yard up (it was the 36" high one) he loved it and didnt mind. I left to do yard work, came back inside about 15 mins later and he was running around the house. I, for the life of me, could not figure out how this little rascal got out. So, after a couple of days, it seemed to be working or at least I thought so. By the 3rd day, he got out again and again. We finally were able to get a bird's eye view to watch him and what the little stinker did was put each foot into the slots and climb his way out. When he got to the top of the fence, he just simply jumped or fell to the ground (carpet). He didnt even care. So, we watched him do this 4 times before we decided to rush back to Petco Store and drop off BOTH play yards! Can you believe that?...a little Boston Terrier can escape from that! Well, we decided we liked the black coated play yard and it is IDENTICAL to the gold wire one, but the black one is sturdier, has a handle and seemed to fold better without all the 'clangy' noise and feeling going on. We just ordered the Black Ultimate Play Yard in the 48" high. I dont want to mess around. I have a 48" high door (babygate style)gate made for dogs and it works well, fits snug and is tall enough, HE CANT GET OUT...so, we figure a 48" play yard will last us a very long time! Plus we can take it to the beach and set it up when we are lounging and dont feel like chasing him and know he will not ESCAPE!"