Nook apartments are very nice. Well decorated, in the city center. The hotel is entirely managed without people. As you book, you receive a code that allows you to come into the hotel and your room. Cosi Team answers fast and try their best to help you with anything you need. Given the hotel current management approach, it is hard for them to solve some problems. During our stay, there was a noise problem from a neighboring room. Cosi Team tried to fix the problem. They failed to do it and also several team members miscommunicated several times what they needed from us, what ended up ruining our last day in Berlin.