Wow!
This place is seriously amazing.
This place is literally a 10 minute walk from the Acropolis - which you can see out the window. The majority of the most famous sites in Athens are in walking distance from here.
This is Athens - so it's an urban environment - but it's a nicer part of the city, somewhat removed from the omnipresent graffiti and completely removed from traffic.
If you've rented a car, there's parking... Assuming it's a sensible European sized car. If you rented an SUV, leave it at the airport and take a taxi. There's no way to navigate the streets, much less the parking spaces, in a Grand Cherokee. This is the case throughout Athens.
The Beautiful Church of St Marina is just outside the window, and the rector takes his bell-ringing duties quite seriously in the morning. You won't need an alarm clock.