Me and my other half went to İçmeler about 3 years ago.
In my opinion almost everything about the holiday sucked.

The hotel served cold food, which should have been hot. The staff spoke barely a word of English, I decided against trying my low-quality French on them. The bar staff played loud sweary rap music at a family hotel until midnight, despite the hotels' own 10pm quiet time rules. The beaches were jam packed from end to end with sunbeds, nearly all empty, but no space to do anything else.
Every single Turkish bar/shop/restaurant owner without exception pestered us from day 1 to day 14 to go into their restaurant etc, despite obvious all inclusive wrist bands, and in some cases were trying to physically pull us into place. Ended up swearing at a lot of them.
It got so bad with a combination of everything that my g/f nearly arranged a flight home and left early.
The only redeeming factor was that on our last day, we caught the final tour boat out of Marmaris, which was filled with Dutch people (lovely people who mostly spoke superb English) - including a pair of blonde twins. 20ish. topless.
> And before i get "cool story bro", or even "Brool Story Co." - Yes, I have pics to prove it. And video.