Mi-Ne is my go-to place for sushi in Richmond Hill. It isn't necessarily cheap but I think you get what you pay for. The spicy salmon rolls are THE best.
Not a fan of the service, it's pretty sub-par. I don't think I've ever not had to stand up and ask for my bill when we're ready to pay. I enjoy getting take-out from here much more for that exact reason. Also, the seating is quite limited (although I've never experienced a super long wait).