Some issues that I have with this hutch:
First, when I went to assemble the hutch, I found that several pilot holes were missing. I didn't think this was a big deal at the time, so I just used my power drill to drill in the screws without pilot holes. The wood began to split (not so much that it was unusable, but it was definitely a concern). I would highly recommend drilling your own pilot holes whenever necessary.
Second, the picture and description does not show that on the upper floor, there are two build in troughs. One trough spans the entire width of the hutch for the front half, and the other is in the back of the private area of the hutch. I was planning on placing a litter box that my bun was already used to inside the hutch, but the troughs made that impossible. Also, the picture does not show that over 1/4 of the upper floor space us used as a hole for access to the ramp. This severely limits the amount of space that I was anticipating for my bunny.
Third, my bun has a knack for escape, and within 24 hours of living in this hutch has figured out how to undo the bolt on the second story and escape. This is not a big deal if your bun is house trained, but if you have other animals, or wooden furniture, this could be a problem.
Last, the wood used to make this hutch is, apparently, very tasty. My bun chews on his walls more than his chew toys. We fixed this problem by zip-tying some wooden dowels to the edges where he chews most. These are cheap and replaceable, so he can chew through as many as he wants!
Other than the drawbacks that I've pointed out, this is a great hutch. It is very sturdy, and my bun seems to love it. We are using it for an indoor hutch, so we usually just leave all 3 doors open and let our bunny hop in and out. He didn't like the ramp at first, but he got used to it in no time. We laid down towels in the upper story troughs for him to sleep on, and placed his litter box in the private area for him. Our bun likes to tip over his water bowl (we don't use a bottle), but we found that the back side of the ramp is an excellent place to put it so that he can't tip it.
I hope this review is helpful to any prospective buyers.