I am very satisfied with the quality of the Pet Gear Pet Pen. I have a very active little puppy that needed constant attention and now I have a place to keep her out of mischief when I'm too busy to watch her every move. She is much happier in a larger space than being in her crate during these times since she has room to play with her toys. The open mesh sides provide ample ventilation, plus folding up very easily when I need to take it with me. All in all, a great product and well worth the money.