The place was as described. Perfect location and even though it was directly next to the bar streets it was not too loud - we could sleep without problems.
The balcony and its view were definitely a plus and if you need a nice place to stay in the city center, we would recommend this place.
Downside: rather poor/slow wifi connection. We stayed for one whole week and only had 2 rolls of thin toilet paper and no plastic bags for our garbage (in Athens you cannot throw toilet paper in the toilet) and only one kitchen towel. This will only bother you when you actually stay longer than 2 or 3 days and plan to use the kitchen.
For the rest: it was clean and comfy and we had a good time. Check-in and check-out were easy!