Loved staying at Bernd and Katja's place! It was very nice - good space and a lovely patio. I thought it would be a bit closer to the middle / city center, but we took the metro into town each day when we were there (it was super easy and a quick trip, but I love being in a place where I can walk everywhere!) There were also lots of great restaurants and cafes right around there, so that was nice, too. If you don't mind jumping on the metro to get into the city center, then this is a great place to stay - highly recommend it!