The worst khinkalnya I've ever visited.
Chikhirtma from the freezer, they never bothered to warm it up. Khinkali is the same to taste, you can buy in any grocery store. I wouldn't be surprised if it's from the same place. Well, the service is just trash. How can you forget to cook a dish for a child, and at the same time telling that it takes a long time to cook?
As for the advantages...perhaps not as expensive as in other khinkalni, the prices of an average restaurant. But I wouldn't call this food a restaurant meal, so it's up to you.