we enjoyed the kind heart of our host very much and also his delightful expertise and good travel tipps. despite him being a cool guy we cannot recommend the flat. there is a strong problem with different types of insects. we have seen one cockroach and my wife was bitten by bed bugs in the second night. i probably too but i don't have any reactions to it. my wife on the other hand is now 9 days later still itchy and has swollen bite marks on her legs. this flat needs pest control.
the area of the flat is indeed a student/ alt left city district not to far away from the acropolis (30mins by public transport). there are nice bars around but many streets are dirty and smell like pee. pedestrian walkways are cracked open and sometimes dangerous to walk. however as i am from Berlin i learned to look over such things and to enjoy the vibrant feeling of poor but interesting places. i liked the area.