5 stars because turkish trucks here go a long distance.
before you cross the border, there is a huge line of trucks. they won't speak english, so better smile and name bunch of cities, then mark their destinations down and after interviewing most of them, pick the best option for you.
i was solo, under heaviest rain in my life and got a 1500km lift across turkey. driver was super cool. border guards also helped me wait for the truck to cross and let me stay inside duty free area.
overall: good spot, but be ready to wait and probably come here in the morning, when all trucks from the rest area depart.