I purchased the soft sided dog pen in the large size for our new puppy who is quite active.  I had thought about the plastic play pen for in our kitchen, but was worried that eventually she would jump over the side.  She bites on the material and likes to claw, but it has been strong enough for her.  It keeps her safe when she is inside it and I am busy.  It is made of excellent quality material for my pet.  Our cat likes to retreat to it at times to keep away from the puppy. My puppy can actually jump pretty high so I was glad that I purchased the larger size.  My only draw back is that the puppy has figured out how to undo the velcro that fastens the floor pad to the bottom of the pen; and then she gets under the pad.  It has pockets for medical records and a place to hang a water bottle.  It collapses very easily and has a carrying bag to take it with you when you go away.  I have been pleased with its functionality.