When it first opened, it's packed (like Uncle Tetsu). Now, the lines are more manageable, and they accept credit now!
I've tried the Tsujiri shaved ice (yum! very good for the summer as it has everything). O-matcha latte (the taste is very good here, matcha taste is strong). Also tried something else that I can't remember the name, it's like the shaved ice without the rice balls and red beans. Also very good.
I've tried their matcha rolls - definitely get this, it's very soft the the matcha cream oozes out of the rolls, this would be my go-to place to get rolls.