Very nice room in the heart of Prague. Actually, everything was fine. However, there are two things I would like to mention:
First, there are two mattresses sharing the double bed, would not be bad in itself, but the mattresses slip apart during the night. They are also very soft, which is certainly not comfortable for everyone.
Secondly, the advertisement stated a terrace, but this was not included in our room. What is not a big deal in the winter, would have been very annoying in the summer and I would have asked for part of the money back.
All in all, the price-performance ratio is right.