I love that these can be configured in literally any way you desire. It can get a tad wobbly, but this is easily fixed by making sure you really push the poles in tightly. The brown fabric pieces are popular with the cats, but they (along with the velcro strips) collect hair very easily and it's a bit tough to get the hair off of them. But this is my only complaint. I use these in an animal shelter and they hold up well. I love that the pieces can be washed. Great product.