This is a fabulous place. We loved it. It was about 3 stops on the U-bahn to Marianplatz and was a safe clean wonderful neighborhood. There is a pastry shop down the street perfect for breakfast and an Italian place right on the corner we enjoyed as well. Both very reasonably priced.
The part our kids loved (we took 4 kids) was the checkin process. It was like a treasure hunt. Super cool. We also managed to park a giant 9 passenger van for free about two blocks away on the street.
There are 3 really nice bedrooms and then a large dining room that we used as a bedroom. (There were 8 of us). All of us slept really well. It was quiet, super clean, and super comfortable.
If you're into cooking a lot (we were not) then the kitchen may be a bit small for your liking. We didn't use it at all. I'd recommend this place to anyone and stay here again.