First of all, I sincerely apologize for your experience in my apartment. Secondly, not sure where you got the whole unit, as it clearly states private bedroom in an apartment not whole unit?
I don't understand where you got unresponsive reply for excessive partying? my messages were very responsive immediately after? As as courtesy and because you checked in a whole 22 hours later I gave you a full day refund, and as other guests have done in past and I explained there is a luggage hold at Ostbahnoff station. (you did mention you were going on a tour that morning.)
The profile does state image needs to be updated as it was the last minute change because I rented out my guest bedroom. But you did receive the master bedroom which is even nicer, larger, and comes with full king size bed, instead of sofa bed and will be advertised at a higher price.
In response to the other room, my tenant was away on a trip and he advertised his own room separately to this, it hasn't anything to do with my profile at all and does show that the apartment is advertised with a tenant.
This neighborhood is most famous for its nightlife in Berlin. But it is hidden gems, if you had asked me for recommendations, i could've offered you some great venues. There is no other better spot.
I apologize for your stay but wish you were upfront immediately so I could make improve your stay to your wants and needs as this feedback is completely all new to me. I have received no complains ever from my guests.
I feel saddened at your experience as I never want my guests to ever feel this way.