Emmanouil saved us! We had an unfortunate cancellation during our stay, and had to scramble to find a last minute replacement. He was incredibly responsive and so helpful, responding almost immediately and extremely accommodating. We were able to store our luggage on check out day, which was a lifesaver! It is so spacious and really has everything you need. It's centrally located between Monastiraki Station and Syntagma Station so you can pick whichever is easiest for you, and there are amazing restaurants located close by. For any Asian Tea lovers there is a wonderful tea shop within a 5 minute walk (and perfect for the hot weather). You can get to the almost anything within 15 minutes, and I highly recommend this stay. It honestly had the best placed AC unit of the places we stayed in.
Note: There is a small elevator that fits one person + luggage! It's directly on the right and could easily be missed if you're not looking!