I like the somewhat circular shape for the aesthetic and seems more comfortable for dogs (4 little ones) to run and play in circles rather than square or rectangle. I looked at comparably priced pens at farm supply stores and they look sturdier but again, not as pleasing aesthetically and that was important to me since it’s near our outdoor conversation area. We have connected some other fencing and this conveniently separates our dogs, if needed. We put the them in the gazebo when they are unattended. Also this gazebo would be a bit more of a deterrent to coyotes, depending on if you place it on grass on concrete. I do wish the plastic connectors were sturdier; don’t know how long these will hold up or it there are replacements available. 
All in all, super happy with purchase-