We use it because we have cards from our Bank to access lounges. Have to say that Dalaman is one of the worst. However, better than sitting out in the Airport and paying for food and drink in the restaurants.
There is usually salad, cheese, chicken, sandwiches, biscuits and cakes. Drinks are all soft, tea, coffee, and cola/sprite, with water of course. Comfy chairs and private toilets.
I remember when we first used the lounge about 14 years ago, their was a selection of wines included in the price, but that soon stopped.