We stayed at Muckys place for 4 nights. Check-In was great, so was the communication before our stay! Starting with the Good, the location is great, close to the city and to the Isar, and quite at night. There is a small cozy cafe right below, which is nice for breakfast.
However, there were some obvious drawbacks. The place is very small, and didn't leave us with a feeling of well-being. There were some issues with cleanliness and some of the basics were missing in sufficient quantity, e.g. toilet paper (we were visiting during a public holiday, so we didn't have a chance to buy our own). The bed also wasn't very comfortable, so if you plan to stay for a night, it's sufficient, other than that, it's a bit of a pain. All in all, I think that the price is too high for the value you get, even for Munich standards.