We were in Mykonos during xlsior festival and had an amazing time there. the atmosphere in the hotel is really nice and friendly. All the interior is kept in white and is really elegant. The poolarea is amazing, espacially after a long night out you can relax and get some food. the miniburgers were really good altough not really mini :)
but the best thing about our stay was the staff. especially stergios, one of the barkeepers was supernice. we had such a great time hanging out at the hotelbar before going to town.
i would definately recommend to stay at ostraco suites and probably will come back again next year.