Natasa's place is really great: wonderful style, very clean, with all the amenities necessary for a short stay and some very nice and personal touches (I especially enjoyed the NatGeo magazines and the book selection). The bed is super comfortable, there is enough storage space, the kitchen equipped for those who want to cook or have a morning coffee at home.
Good location also for visiting Athens: the major archeological sites are within walking distance: 5 minutes (Panathenaic Stadium) to 20 minutes (Acropolis). The Metro station (blue line) is at about 12 minutes walk. The street was relatively busy during the day, but calmer at night.
The communication with Natasa was easy and the responses prompt.
I thoroughly enjoyed my stay and would recommend Natasa's place to anyone visiting Athens alone or as a couple.