Excellent location for walking to all tourist sites. Even the National Archaeological Museum (which was the furthest away site) was only a 40 minute walk. Places such as the Acropolis museum and the Plaka were only a short 10 minute stroll away. There are two small convenience stores a couple of minutes walk from the flat, and there are many options for restaurants nearby. Underneath the flat there is even a vegan/vegetarian restaurant and one Thai and one Italian restaurant beside that.
Communication with the hosts was excellent, with very fast and patient responses. They left thoughtful touches such as basic food (such as butter/bread/coffee) which were a lovely bonus and lots of towels.
The flat is a very good size, comfy bed and good shower. It's located on the top floor of the flat, providing nice views and has a lift meaning you can avoid the turret-style stairs.
Great value for the location of the flat, and it's size.
My only negative would be the very busy road alongside the building. It seems to be Athenian culture to hit your car horn for a good 10-20 seconds for no reason whatsoever at literally any time of the day. This led to me not sleeping properly for the entirety of the holiday. However, I will admit I am a country bumpkin and am used to complete silence while I sleep. If you live in a town/city yourself, I imagine the noise would be easily ignored after an hour or two. But for anyone else used to silence while they sleep, I'd like to make you aware of the noise now. This flat is well worth getting, primarily for the excellent location, but do bring some ear plugs.