The apartments are located just behind the Krasnapolsky Hotel (some of them can be also accessed through the hotel), facing the edge of the red light district. So the location is just perfect for a sightseeing walk. The apartments are very stylish, recently refurnished. We were staying in a smaller one - this had no bathtub only shower, but this was okay. Everything was perfectly clean.
The kitchenette was well-equipped (we cooked some light meals and we found everything we needed). Free Nespresso and dishwasher capsules were also provided.
The staff is very friendly - we lost the key of our apartment twice during our stay and they were helpful both times. The concierge of the hotel gave us good restaurant tips - thanks again! :)