Stayed there last year with the man above (hubby) and like he says the hotel was a little tired, but the rooms were very comfortable and the standard of Housekeeping was very high concidering how messy we became after a few days of relaxing!!
The walk back from the Beach was steep, further compounded by the various levels of stairs one had to walk up to get to the lifts! The Gates do close at 11-12pm, which meant a long walk from the Village, again very steep in places, to the front of the hotel. Still good exercise!!
The food was very basic and I guess when you are catering for so many people it did resemble a motorway service station. You are also given set times when you must go into the dining room, for the evening meal, which was pretty inconvenient. The wines were expensive (as are all the drinks in the hotel) and a very limited selection. We did end up eating out for dinner for almost the whole stay (despite it being inclusive)
We found some really nice tavernas and restaurants on the beach, as well as a couple of very nice ones if you follow the road from the hotel to the village.
Finally - and I don't mean to be completly negative, - BUT if you want to use the pool, get there early !! it was like sardines in a can - better to use the beach!
Have great Holiday Agios Gordios is a lovely place in September, and hope you enjoy it