I have the three story 48 inch condo from there. I love it
I got mine when we first moved into our new place about 3 years ago and it's still holding up really really well. Looks like new, but I do clean it a lot and all that. The doors are a good size and it's easy to clean. If your bunnies chew a lot, I recommend getting the chew guards for inside the condo.
One thing I really like about the cages is that it's modular, so if anything ever does happen to part of the cage you can replace a part instead of having to replace the whole cage.
I personally think they look nicer than most other types of rabbit cages, and they have a good amount of space as far as rabbit cages go. They'll still need time to run around outside of the cage but the cage is big enough for mine that they do play a lot inside the cage. And it's more than enough space for them to be able to stretch out and relax, and stand fully up on their hind legs when they want too.
Actually for my bunnies, it's funny because I almost never shut them in their condo, so the door is always open for them. Still a lot of the time they prefer to hang out in their condo over anywhere else in the house.
If you have any specific questions let me know and I can probably answer them for you
I know the cages are a bit pricey, but over all I do recommend them.