They've been on a regular every Wednesday schedule in front of the Sony Centre. Decided to walk over from my office for lunch and try as I had heard good things. Ordered the Hercules (Chicken souvlaki) in a pita. Service was quick--everything is cooked and stored so they just assemble the pita for you--takes about 30 seconds. Pitas come garnished with tzatziki, tomato and red onion, they even stuff a few french fries in it which I like. Overall the pita was a great lunch, chicken was moist--even after I reheated it when I got back to the office and the pita and garnishes were fresh. Will return to try the other offerings.