I purchased this product for my baby Syrian hamster, and she loves it. It's bigger than I thought it would be, and you can fit a lot of toys etc inside. It doesn't take too long to put together and it looks pretty cool.
BUT, this is not big enough to be a cage for a Syrian hamster (even a baby). Hopefully anyone who owns one will have worked this out for themselves - it's cruel to keep a hamster in something this size! I'm using it as a cage add-on (which is what it should be advertised as). There's a hole where you can fit standard ferpast tubes, so you can attach it to a (much) bigger cage.
The water bottle doesn't fit as the nozzle is wider than the bars - but it shouldn't matter since this is NOT A CAGE.
The metal part (bars) was incorrectly manufactured, so the hole for the tube is too low down, meaning the platform had to be moved down as well, which is fine, it just doesn't look quite so neat and the ladder is now really steep.
Apart from that, it arrived quickly with no missing or broken parts. And Mitzi loves her play house.