My boyfriend is Syrian and took me here so I guess its legit! We were three people and shared everything. Just so you know Alep is the more fancy restaurant. The Petit Alep has a cute terrace and is less fancy.
We shared two mazzas - hummus and kebbé nayé (beef tartare, bourghol and finely chopped onions spiced with fléflé). It was probably the best kebbé nayé I ever had. OMG it was so good! The meat was fresh! Get the bigger size for sure! We also shared the fattouche salad. The salad was very tasty. I gotta learn how to make it. We also had the spicy sampler (Kabab khach-khach, Chiche Kabab Terbialy and Shishtaouck) and the braised lamb with wine, port and spices served on rice topped with sauteed almonds and pine nuts, choice of salad or yogurt. We got the yogurt. I didn't really use the yogurt. I honestly liked it better without. We didn't get the salad because we already had the fattouche. The braised lamb is good if you like stew. I preferred the spicy sampler. It's not spicy though... at least not for my tastes. Out of the three meats I think I preferred the shish taouk. The sampler also comes with slices pita bread with some spicy powder on it. That was very good too. The pita bread that they give you at the beginning looks like the ones you buy at IGA/metro but they are warm and apparently they are not from IGA/metro but they are fresh.
My boyfriend ordered dessert but I was way too full and didn't have any so I can't if it was good or not. I think I would want to try the Petit Alep and sit on the terrace on a nice, warm night.