We were there during August and it was hot but we didn't miss air con. We didn't even need fans except for the las two days when the daytime temperature was in the forties. The apartments were quite large and reasonably well equipped. They were always clean and the linen was changed every other day. Our apartment was to the left of the bar as you faced it and at night we could hear the Planet bar but it wasn't a problem. The main advantage of the apartment was that it was in the shade in the late afternoon. This meant it was pleasant to sit an have a drink after coming back from the beach.. The ones opposite would have been too hot. The pool was always clean but the sunbeds were uncomfortable, though as we spent most of our time on the beach this wasn't too much of a problem. The reception area is a waste of space. I assumed it had been a restaurant at some point. The staff were very friendly and helpful and the mini-market had most things we wanted an at reasonable prices. On the whole we thought the apartments were great and Tsivili was a good place for a family holiday. 

The beach is great were there practically every day. There are at least two bars directly on to the beach in the middle section. Watch out for the DVD sellers. We bought a few and some of them have Greek sub-titles that we cannot get rid of.