Luna Lounge is a really nice way to end a busy day. It's a chilled out location with courteous and efficient staff. I didn't order any food but all the dishes I saw around me looked very tempting.
In terms of sheesha, there was a great variety of flavors, and the staff are willing to recommend something should you so desire (and they'll get it right, too!).
Best of all, one of the days I was there, they had a DJ who kept the music at a level where you could still hold a conversation. All in all, a really positive experience.