Well, I felt like it was just another hotel pretending to be a 5 star hotel . The big no no was the swimming pool, where a light was broken and hanging in the electric cord (under the water in this pool). I have seen so many movies where electricity and water was a bad combination, I stayed out of the water (And the I'm pretty sure it was still safe...) Sauna....well should be hot, was more like Italien summer, not hot and to top it of, a plant that had fallen to the floor and lay there.... for I don't know how long. It can also annoy me a little that in a 5 star hotel, you have to use a coffee machine at breakfast and no personal service. The breakfast was fine, the staff were polite and everything was nice and clean. In similar hotels, it is quite normal to be served coffee or an expresso at the table.The jury is still out on whether I will come again, some things speak for it, but there are just so many other exciting hotels in Berlin in that price segment. Especially the experience with the pool and the wellness area was very disappointing that it could even be done with such defects not being discovered and fixed. My inner director would probably have scolded the person in charge of the area, but then again I'm only a guest and sometimes I just want to relax.