Went on a weekday night around dinner time and line was short (around a 10 minute wait). Being a fan of matcha, I thoroughly enjoyed their Tsujiri sundae (vanilla ice cream mixed with matcha). There are some tables at the back of the store but it isn't really a sit in restaurant. Most people just take their order and go.
Prices are what you would expect for an ice cream joint, around 5$ for a sundae.
Will definitely return!