I really like this carrier. It's very easy to get my dog into and he didn't freak out once he was in it. My dog weighs 18 lbs. What I like is that he had plenty of room inside. He wasn't crammed in there. Also, it folds nicely for storage.
My 26lb King Charles cavalier fits on this. This was the only bag after searching so much where my dog fits. Happy with my purchase.
I have purchased a few dog bags for flying, some retailing around the 180 dollar mark. This bag is pretty much perfect for my needs.