I visited Berlin with my kids (20, 16 and 14 years)
Communication with bensimon was easy and professional.
Our welcome was nicely done and also good organized. You'll find all kind of information on the tablet in the apartment.
The appartement is nicely furnished, bright and has a view on the trainrails but we had no trouble sleeping. The view indeed does fit the industrial look of the apartment.
The bathroom is even better than my one.
Bus and tram are close and not expensive.
We loved to stay in Berlin and we will definitely come back.