The box looks good, so expectations were high. My 7 year-old son could't wait to build it. What a disappointment ! The cardboard parts are to be sticked together with double-faced tape and the end result of the "hemisphere" is a lop-sided half dome that doesn't hold together for more than a few hours - even though we worked together on it for more than an hour. As a previous reviewer said, the projection of the night sky is not remotely looking like a real night sky. I am a keen amateur astronomer, but I defy anyone to recognise any constellation. Moreover, the projection is distorted on the ceiling, which does not help. It ended in the bin after 2 weeks, out of annoyance with the various parts that kept falling apart.
Many kits from the 4M series of "inspiring science" are recommended by the London Science Museum - including this one. It makes me wonder. We already tried our hand at the volcano making kit, which was quite a disappointment as well. The ideas are good, but the experiences never seem to come along as they should, mostly due to the fact that the quality of the material provided is a bit cheap.
I won't buy any further article from that range in the future.