First, this is one of the more spacious Crittertrails that was (formerly) on the market. I like it a lot more than their regular line, and unfortunately that means they priced it higher. But this makes a nice home base for a dwarf hamster, and has a little hub you can put them in while cleaning the cage. The cons to this cage is the door, unfortunately. All the hinges are plastic, and they are made cheaply. More often than not, they will break at the hinges, and the snap that holds it closed came broken already in one that I had purchased. The tunnels also are a little more tricky for any hamster that cannot make completely vertical climbs, and none of my guys were interested in navigating to the top on their own. If you find one on clearance, its worth it, but not full price.