An excellent location to stay for a first time (or even experienced) visitor to Athens.
The room was well provisioned, very clean, and comfortable. Perfectly sized for one person or snug for two people. Weekends will see the area get busy in the evening, but the noise was never distracting. The area around the location felt safe and easily navigable.
Walkability is a key factor, as there are many great restaurants within a 10-15 minute radius, along with supermarkets and laundry. It is only about 15-20 mins comfortably walking to reach the hub of the Acropolis, Pnyx, Plaka, and general ancient area of the city. If traveling long distance by bus, KTEL stations are best reached by UBER, but still inexpensive. Metro is very close by as well, if you want to hit the Piraeus.
I would gladly stay in this location again in the future, Katerina was an excellent and attentive host that made checking in and out a very smooth and simple process.