"I bought this for my daughter and I to put together for one of her hamsters. The colors appeal to children. The idea is cute, but it stops there.
It was very difficult to assemble, the pieces either did not properly fit together and/or when we tried to click them into place, the whole unit fell apart. The pieces do not hold together well.
We even tried to assemble by putting the pieces flat and raising them into shape.
It took well over an hour to get the unit assembled to the point where it could be moved into the cage.
The tubes did not fit easily into the holes - they have to be assembled first or the entire unit may fall apart when you try to insert the tubes. The tubes are also not compatible with other tube connections so putting them together with other Critter Trail tubes to expand the Puzzle Playground is difficult. They are a hair larger in diameter. Other Critter Trail tudes will fit into the Puzzle rings but the Puzzle ring tubes do not fit well into the regular Critter Trail tubes.
The design flaws need to be addressed for easier assembly. I dread having to take the unit apart for cleaning!
I will not be buying another one. There are other creative things we can do for our small pets."