Thus, for housing:
During the assembly, I had no difficulty applying much force I did not have.
One problem, however, is that the Raspberry is held only by using the interfaces in the housing, ie which have no interfaces with the two walls, the Pi hangs loosely and generally wobbly in the case. As long as you do not often what connects to the Pi, this should not be a problem. I was however, disrupted it, luckily I was able to support the Pi using cardboard good.
Conclusion: Actually a good set, the case would have to be just a little bit improved.
If you often want to access mainly to GPIO pins / needs then you shall the Pi but support or yet get another case.