This restaurant features northern Chinese cuisine. I am from northern part of China, and yes, I agree that the signature lamb kabob is authentic northern cuisine. It is the same as you would expect in a restaurant in northeastern China. The northern Chinese dishes are salty and savory. For kabobs, cumin is an essential spice and this gives the kabobs a special taste.
However, other dishes I ordered are disappointing. I would only give 3 star for the food. However, the service is great and the restaurant looks pretty clean. Overall I'd say 3.5 star for this place. Round up to 4 star because of the service.
I would go back to try other dishes though.
Review for specific dish
Green Bean: tastes fishy. It's quite strange when your vegetables taste fishy and there was too much garlic.
Eggplant in garlic sauce: I think they used pre made sauce for eggplant. The sauce tastes too similar to Lee Kum Kee eggplant sauce (which is definitely not authentic). In addition, the eggplant is so bland.
Steamed whole fish: average
Beef soup: tastes great. It's a real hassle to avoid all the carrots and green beans though.. It would be perfect if cilantro is used instead of carrots and beans.