The apartment is amazing, on the 5th floor, clean and stylish.
There is a large terrace where you can enjoy your breakfast or dinner with fantastic views of the city!
We didn't use the bus, there is one just outside the building that brings you in 10 minutes in Syntagma Square, we were walking and it takes only less than 20 minutes to be in the centre of Athens, and from there you can visit all the major sites! It's also only 10 minutes walk from the Archaeological Museum!
Nikos himself is an amazing host, he suggested many places and restaurant, always willing to help and very friendly.
All in all, an amazing stay! Definitely recommended!