Great location and clean. Small apartment - just enough space for two people.
My biggest complaint would be with regard to housekeeping that happens once a week. The housekeepers quite literally ring the bell and barge into your room, not even waiting a single second for you to respond, at any point throughout the morning. The first time this happened, we got barged in on whilst changing clothes and they seemed angry at us, without apologising, even though they were the ones to walk in on us. The second time was our check out day and we were barged in on yet again early in the morning, woken up, whilst they were speaking german to us and getting frustrated at us for not understanding. We were also uselessly woken up early as we had to check in hours later anyway.
Besides the attitudes of the housekeepers, I’d say this is a comfortable place to stay! The kitchen functioned well, bathroom was very comfortable and had no issues with any appliances which is a major plus. Also, it’s one minute away from the subway and you could get an S-Bahn train to a number of hotspots so it’s very convenient!