Why don't you speak to THY and see if you can bum lounge passes from them because they've increased your transit time. The THY lounge is the best of the bunch.
The pay lounges are Primeclass, €45pp if you book direct - but its worth shopping about, Expedia etc as you can often get a cheaper dollar price. Facilities same as you'd expect in any major airport, free food, booze and comfy seats.
JF