We stayed at this apartment for a total of 9 nights in June. Overall, the property is adequate and nice. Location is very well connected by public transport and also quite close to Autobahn. The actual apartment is as per the picture shown, so no surprise. The service, etc was hassle free and adequate - nothing really to write about.
However, there is one major point you should be aware of: the apartment location as shown on the Airbnb site is highly misleading. The apartment is actually located right on the main road which has very heavy traffic. Hence, the apartment is very noisy, including throughout the night. We had difficulty sleeping for several nights. So book this apartment only if you are a heavy, deep sleeper.
A couple of other, smaller points:
1. There was no full length (or decent sized) mirror in the apartment. My wife had some challenge getting dressed every morning
2. We were provided 3 coffee capsules - for 2 people for 6 nights. Not sure how that would have been adequate.
3. The bathroom and kitchen supplies were also miserly (many basic items such as a sponge, etc were missing).