The grids, connectors, and base are of great quality and very sturdy. Super easy to assemble.
I do wish that the coroplast base walls were lower/shorter. At 6 inches, it is a little hard to see the pigs when the cage is on a table. If the cage is on the floor, then 6 inches is great. It would be great if 3 inch walls were offered as an option.
Thank you for the kind review. At 3", the majority pigs will chew the coro edges as that puts the walls right at prime chewing height and there will be more mess and kickout and urine spray hitting the walls and floor. The other reason we go with 6" walls is that guinea pigs are prey animals and feel more comfortable with walls, rather than living in open spaces, so it's for their pyschological well-being, too. But that said, given the nature of coro, it's also pretty easy to make a score and/or a cut to cut down or fold down your wall if you prefer. I'll create a blog post soon about how to do that.