We highly recommend the apartment.
This is a 70 mr luxury apartment in the right place.
The pictures at the airbnb site were a real turnoff but I thought the location was more important and it is a bigger place then other places at comparable price and anyway, the place can not be that bad...
I was more then correct, the apartment is very large, spacious and very comfortable, We had everything, even an Iron for the shirts. There is a shower and a big bath tab, The Kitchen has all we needed for cooking which we did a lot.
The location was also great, around us were a lot of beautiful shops and there was a farmers market on Sunday.
We found that using the U-bahn is the best option to travel around Berlin and there is a station 5 minutes of walk away, the M-tram is just 150 meters away.