I went there on a Sunday around 12:30pm. My parents and I had to wait about 15 min to get a table which I think is reasonable for such a busy spot. Despite the line up at the door I was impressed with how the server would routinely come by and acknowledge the new people that arrived and keep track of how many in the party. The line also seemed to move at a steady pace so it did not feel like we waited a long time.
Items on the menu were between $4-5. About 40 items on the menu. Food arrived fast but also timing was nicely spread out. We ordered about 7 items and our bellies were content. Everything tasted good. They bring you tea automatically but it is $1 per person. We felt the service was good. We had interactions with about 3 different employees and everyone seemed to understand English. Bathroom was clean. Not more that I could ask for.
They only take VISA or cash.