Apartment was clean although kitchen and bathroom a little dated. Some damp on ceiling in bathroom. Well stocked apartment with towels, linen, toiletries (shampoo/shower gel) and tea/coffee/washing powder etc which was nice. Bed was very comfy.
Wifi didn't work which was a huge inconvenience!!! No reply to my text when I queried this.
Building entrance had a bad smell (maybe rubbish?) The area is quite run down with graffiti etc but maybe that's to be expected of East Berlin. Local tube station (Prinzenstrasse) attracts tramps and very dirty so I didn't feel safe at night. Was told Kreuzberg is the place to be for nightlife but we struggled for the first few nights until we befriended some locals. You need to be in the know! Centre of Kreuzberg is very run down but some nice restaurants and bars.
On the plus side there are plenty of kebab shops for a cheap bite to eat!
We left a few hours earlier than planned and I did text both Kemal and his friend who dropped off the keys to ask where I should leave the keys. Didn't hear back so we posted them through the letterbox and I text again to advise but still no response. Maybe they didn't want the cost of texting a UK phone but I thought it was quite rude neither getting back to me. If wifi had worked as stated I would have sent an email!