My girlfriend and me stayed at this apartment for the three nights.
It was very clean and we had everything we needed.
I am very sensitive to noise, but could sleep very well during our stay - it was very quiet.
Location was as described, there are several public transportation connections to get around the city close by. It took us about 20 minutes to get to the center - from door to Museumsquartier.
We got a few good tips from the host about where to eat, what to do and where to buy things.
We would definitely stay there again and would recommend it to everyone.