We had a nice stay at Stavroula apartment. The place is cosy, clean and quite central in koukaki, a great area with restaurants, bars and cafés. You are also at walking distance to Acropolis. The only thing I noticed is the traffic in the street from the bedroom but nothing really to complain if you are not too sensitive to noise and have a good sleep. Except that a perfect place to stay and enjoy the charm of Athens.