I have been here many times for the $1 sushi as well as the lunch buffet.
For the $1 sushi, the Big Roll is a must. It's convenient that if you order and are still hungry, you can order some more- even if it's only a couple pieces. It's a great way to test out some of their menu options without breaking your bank.
The lunch buffet is outstanding- they always offer 3 types of sushi in addition to edamame, spring/egg rolls, rice, and chicken & beef dishes. It's hard to pick what to put on your plate.
The specialty cocktails are pretty good too, if a little pricey.
Overall, if you get a deal it's worth it, but I've definitely had better sushi.