This encloser is exactly what I need for my growing labrador puppy. Ive had for a week and here are my thoughts. Pros Easy to put together. Nice and sturdy though as she gets bigger Ill be looking into something like tent pegs to give it even more strength. Tall enough for her and with the added bonus of the cover it will hopefully deter her from trying to jump out as her legs get longer. Cons Not many however I would not exactly call this portable. Its pretty heavy so I wouldnt want to have to move it around or pack it up and set up too often. The door is a little flimsy and Im a little concerned she might get her paws caught if she gets too eager to push her way out. I will be buying another one for sister so she can keep my puppy safe with enough room to play in her back yard.