Villa Merina is an absolutely amazing place. Lovely house and beautiful surroundings. We were there in late October, so we took advantage of the heated pool (costs 25 euro a day). Vasiliki is extremly helpful. She was there to welcome us, and helped us during our stay.
Note that the house is placed in the mountains. You need to plan you grocery shopping when you are out anyways, and expect driving on winding roads if you want to do alot of sightseeing. We ended up hanging around the house alot because it is such a wonderful place.