No, I haven't been there yet, but I can't wait to go.
I visited my orthopedist last week, and after telling me "You should really lose weight -- it would be the best thing you could do for all your joint problems," he regaled me with tales of how his mother's cooking, and esp. how she used dehen, or rendered lamb fat, for that special taste. I could tell I was in the presence of a fellow chowhound. Then after telling me "The stuff will kill you," he said, " you know, you should eat more Middle Eastern food."
So, where does he go? Well, he says Al Bustan (3rd in the 50s) or Byblos (39th off 3rd) are OK, esp. the kibbee in youghurt sauce at Byblos. "Stay away from Tripoli, it's crap." (I could tell he knew his stuff.) But for a real good meal, go to Waterfalls on Atlantic Ave. "They have this old lady in the kitchen, she never moves. She must be chained to the stove, but boy can she cook. The best Middle Eastern food in the city."
There was some positive discussion of Waterfalls on this board a few months ago, but I am offering these tidbits to encourage some more people to try it.