We were very disappointed with the apartment. Much smaller than it seemed based on photos and description. Significantly further from the Acropolis than described (they actually went and changed the description after we pointed out the discrepancy). The A/C only works in the bedrooms and not the living room and kitchen area. We were planning on staying there for 4 nights but left after only 12hrs. Even though we hardly got any money back it was worth it. We were extremely happy with our decision to book another accommodation. Going as a tourist to Athens being closer to the Acropolis makes a huge difference and it's definitely worth a little extra money.
On the plus side their driver who picked us up at the airport was wonderful: a true gentleman, very courteous, helpful and friendly.