I bought this to replace the traditional igloo style that neither guinea pig cared for, as they argued over who used the one like this we already have. They really prefer the wider opening on this style, and the large is perfect one pig, with room to turn around and stretch out. The only thing that could be improved would be more traction on the steps and top 34;platform34;. They want to use it, but I think it makes them nervous.
Rating: [5 of 5 Stars!]