Toni's apartment is excellently located within Athens - you feel like a local as it is not a high-tourist area. Close to public transport, bars, restaurants and a short walk to the Plaka district and Acropolis make it ideal for a visitor.
The amenities were great, beds were comfortable, shower had great water pressure, lovely touches like water on arrival. Block out blinds, which is great for those with kids and jet lag.
The only downside for us personally, was that the apartment when we stayed did have a very strong cigarette smell, which may bother non-smokers and those with small children. We have given this feedback to Toni, and I am sure he will address the issue.
Toni was a wonderful host, very quick to respond and helpful with whatever we needed.
This should not deter you from what is a great apartment and ideal for a stay in Athens.