Great idea, processing unfortunately short of expectations

The idea is really great, the implementation is of a quality for the price, unfortunately, not particularly.
The lower level is made of cardboard and the quality of her still in order.
The second level consists of a foam mat. The parts were mostly still together and not punched clean.
The buildings which are to be placed in the end, unfortunately, not very nice to look at, I would have imagined much more detailed.
The two of us have spent a total of 8 hours, with the first level longest delays.