I bought this cage yesterday afte looking at the Cambridge and the Maxi Mouse models for my two Campbells
I liked this cage becasue it has good floor space, the uppper level is roomy and the tubes fit in place really well. It was easy to put together and the cage comes with all the tubing, a water bottle, a wheel and a house. I've put a smaller wheel in for now and have put the wheel that came with the cage in the WW's cage.
On the down side I wasn't impressed with the water bottle as it seems to constantly drip, and isn't 'on demand' so to speak, so I've replaced that with a regular bottle
The Savic's aren't cheap, (this one was 39.99) but they seem to be popular models and well built,it's also easy to get parts for it.