Alkis was a great host from the start, responding quickly to my concerns prior to our stay, and remaining available through our time in Athens.
As for the place, the area may seem a bit intimidating at the start, but after taking a bit of time to explore the area, there are a lot of interesting places to go to in the neighborhood! From restaurants to bars, the place is alive, especially at night.
Train station is sufficiently close, and if you're feeling energetic, it's actually possible to walk from the apartment towards the main tourist areas.