I've been there for three nights and it was fantastic. It was my first time with Airbnb and I'd do it again.
I arrived early in the morning and through the Self Check-In I could go into the flat immediately. It wasn't loud around/in the flat/room so I could sleep very well.
The tubestation "Kaiserdamm" and a "Commerzbank" are only 5 minutes away from the flat.
Last but not least I would say: It was a great time in Berlin - I'll come back again :)

Thank you Parwana!