I can't recommend Eleni & Maria's apartment enough. This was my first airbnb stay and it was made very easy for me, all my questions were responded to straight away before and during my stay. The apartment is perfect, even better than the pictures make it seem and the location couldn't be better. There was a bottle of wine and stocked fridge waiting for us on arrival which was greatly appreciated after an overnight flight, a really nice touch. Also Maria was able to book a taxi to take us to the Airport at the end of our stay, again making it very easy for us.
The aircon is very effective and kept the whole apartment cool, it was lovely to be able to relax on the comfy sofas in the lounge for an hour or two in the late afternoon after visiting some of the many historical sites and before heading back out for the evening. We made use of the kitchen to make eggs and toast for breakfast and also used the washing machine mid-week which was really useful. The roof terrace is lovely and we were lucky enough to to watch a full moon rise above the Acropolis one evening.
The location is perfect and we were able to walk to all the areas of interest including the Acropolis and the Agora within 10 to 15 mins. The pedestrianised street is just a minute away from the apartment and there are many places to chose from to eat or have a few drinks. Despite this being so close, we were unable to hear any noise from this in the evenings.
Apologies for the long review but as you can see I wouldn't hesitate to recommend the apartment. We really enjoyed our time in Athens and hope to visit (& stay at Eleni & Maria's place!) again soon.