It's easy to put together and when made, you can move it around and make different designs. You can then add other Rotastak products onto it to make it bigger.
I find it very easy to clean as all the lids pop of and cages come apart. My favourite part is the dining room - It has a slide out food tray and easily removed water bottle. It has a useful compartment for carrying your pet to the vet in too. The circular room lifts up from it's floor and you just tip all the mess into a bin - VERY EASY!
The tubing was a bit confusing though. You need to be kinda strong to clip it all together and if made into curves the two halves of the tube stretch and there's a gap, I had to sellotape it back together so it was safe.
Overall, the price is resonable and it's a good buy.

Pros: It's fun, spacious, easy to clean and easy to build

Cons: TubThe tubing has gaps