This is my go-to cheap sushi place! I have had better sushi, but I could not ask for better sushi for this price a short walk away from my apartment.
They're also really great about gluten content. I usually bring my own soy sauce with me to sushi restaurants and have to be careful about what I order. Sushi Supreme has gluten-free soy sauce on request and although not all of their employees can speak to the whole menu, I have had someone go through every single item that I can't eat with me to make sure it's a safe dining experience. Pretty great!
The portions are plentiful, especially the veggie tempura! I usually like to order a few sets of 2 sushi pieces of my choice - although if you're less picky than me, the combos are cheaper - and I'm always impressed with quality of the fish, the ratio of fish to rice, and the portions in general.