I'm sorry, but I don't know how you could like Olympic Pita.
I went to the one on 12th and got a falafel pita. The falafel balls were pre-made and sitting under a heat lamp. The guy threw a couple into a cold pita, and topped it off with cold cabbage, Israeli salad, hummus, tahini, and pickles. The hummus was yummy and so were the pickles, but the sandwich was cold and a real letdown. The way some people rave about this place I was hoping it would be more along the lines of Taim. What am I missing?
I think I just gave up on falafel after too many cold/bad sandwiches. I think bahn mi are not only delicious, they are almost always made to order. I know it sounds unrelated, but as I read your post that is what popped into my head. I know, I am a freak when it comes to such things.
I haven't been to the one on 12th Street, only the 38th Street location. Perhaps you went at an off time. A couple of times I've had lukewarm falafel balls. Pita is not the way to go. You must do the laffa -- a totally different experience. However, the falafel balls are no way as delicious as Taim. Taim rocks.
The food is much better at the 38th Street location, which is probably because they have a full kitchen, whereas the place on 12th Street is more of a stand.