We stayed at the Oykun in June this year and there were quite a few people using it at some time during most days. It is right next to the hotel, can't help with fees, etc. but it was definitely being used. We really like the Oykun if staying in a hotel, go back to Calis in a few weeks and as we prefer self catering are staying in apartments. We have stayed in an apartment in the Oykun but they are on the top floor with no lift and in the heat I found the stairs a struggle.