Starting from the start: Panos place is in a lovely neighborhood, on the slope of the gorgeous Lycabettus Hill, safe and super cute with a lot of nice cafes, bars, bistros and everything else one could wish for. A lot of high rank politicians live nearby, so the streets are patrolled, that should not alarm anyone, the officers mind their business, in fact it is just extra safety!
Having said all that, if you are not with a car be prepared for some walking uphill, so, maybe it is not perfect for people with trouble on their knees, unless they use a car to move around the city. I personally loved that little hike and being already on the slope of Lycabettus, I would go all the way up the hill whenever I could, this is one of the loveliest things you can do in Athens, the walk is beautiful and view simply spectacular.
The flat itself is very convenient and comfy, very practically arranged, exactly the way i would have done it myself. It has pretty much everything one could need and looks cute. I loved the sparkling bathroom that is in the bedroom! Mrs Elvira, the super sweet lady who gave me the keys and who keeps the flat clean, is doing an amazing work at it, the place is shining, it is the only place I have ever been to, where even the sugar jars were spotless :)
For me personally the only problem was, that the beds mattresses, even though they were truly not bad, did not agree well with my back and injured shoulders, which was unfortunate, because I loved the place. Also, only during the coldest nights, sometimes a bit of smoke would get in the flat through the windows, I assumed some burner nearby was emitting it, but that was not a big problem, usually it would clear within 30-60 min.
All in all it was a wonderful stay. Thank you Panos!