this cat pen is a decent size. I purchased it to add to my existing catio to provide more room. 
the overall appearance is nice.  The wood is thin as is the cloth screening. Predators may be able to get in so I will only use when I am home to observe. 
I did like the fact it is a kit as was my other one. I assembled this by myself. Took longer than it would have if 2 people assembled it.  Not sure how long it will last but my cats will like being able to be outside.