I contacted them last minute, because I needed accommodation for one person in Berlin for two days.
They were very responsive and replied to all my questions quickly. When I asked to change rooms a few hours before check in, due to personal preference, I was lucky they had one available and happily changed the rooms. The area is busy, but not noisy. Very close to S bahn and Rewe.
The main heating and cooling system is operated by air conditioning, which takes about two hours to get going. Just mind that, and don't panic like I did. Since I booked in Dec, my thing was heating. It was very warm in the room, pre-heated, and the AC did slow, but well.
The bathroom floor has floor heating, and the towel radiator works beautifully. I am saying all these great things due to a lot of airbnb's in Germany this time, that are reluctant to heat the space properly. Noma did good by me. I loved the design, the mattress, the huge shower, fully functional kitchen, and spacious work station.