Anna was one of the cutest people I met. She is really hospitable and made some baklava and borek for us, with a nice red wine, which we loved. :) The house's location is really nice. If you are fine with walking you will easily walk around the city from house. There's a market that you can buy anything very close to house. The only thing that may bother some people is that the room has only one window and since it is at the first floor it doesn't get too many natural light, it wasn't a problem for us though. :)
I highly recommend this house, if we go to Athens again, I will definetely check Anna's place first ^^