We stayed there last October Lance (when we met you on the prom) - I had picked customers up from there on many occasions and every one seemed to like it very much so I wanted to see for myself, plus they have one bedroom apartments that sloeep 4 which was ideal for us.
We loved it - of course in October it was pretty quiet, but the staff very nice and you could understand why people come back year after year to stay there. It's 3 star, and it is - no luxury but not basic either. All the people we met staying there were either regular returners or were having a great first stay.
Unless your friends are looking for 5 star pampering, I'm sure they'll enjoy the Oykun.