Everything was wonderful. The flat location is perfect, so close to everything! We didn't even need to take any public transportation to be able to sightsee since we are used to walking. But in case you need, there's plenty of public transportation near, like trams buses and the Metro.
The flat was awesome! Very clean and with very nice decoration. The shower was perfect and very much needed after a long day. The kitchen had everything we needed with modern appliances.
It was our first visit to Athens and were not sure what to encounter (safe-wise). Turned out the neighborhood around the apartment was more than okay. We didn't feel unsafe or anything like that. If you are looking for a place and are worried about security, this place is perfect and you'll be just fine! Of course, you still have to take care of your stuff. It was just I read so many bad stuff online and got a little scared but after being there I can say it's not that bad. The apartment is right at the Acropoli Museum/ Plaka.
Irene was always very responsive and clarified all our questions. The extra service with the taxi was very nice as well, as we didn't want to hang out in the Metro with suitcases.
All in all, everything was great and I totally recommend staying at Irene's flat.