We had a great time in Bill and Helena's apartment. The situation, close to the Akropolis museum and to a metro stop, was ideal. We could go home in between sightseeing for some lunch and a rest before going on for a full afternoon programme.
The apartment is well equipped and there were lots of guidebooks lying around. The terras was great for breakfast and for a drink in the evening. There were so many small local restaurants nearby that we didn't for one minute consider cooking our own meal, in spite of the well-equiped kitchen.
We used their transfer service, which I can strongly recommend.