I got the 4.99 lunch special and to be honest, when you're craving sushi and you don't want to shell out much, this is a good option. Comes with a drink too, there's about 10 drink options to choose from including pop and juice. The sushi is fairly decent and tastes pretty good. I can only speak for the vegetarian rolls though.
I went in today to pick up lunch and unfortunately they messed up my order, they switched my food with someone else's. I immediately went back (~ 5 mins later) to let them know and they apologized and quickly remade my order fresh no questions asked. It was also done very fast, and I was out of there in 2 minutes. So if you're grabbing lunch, make sure to keep an eye out before they close the container of your sushi!
Lunch time can get very busy, but the line moves fast. Have your money ready to ensure a smooth process.