A must when visiting Tokyo, it's fun, different and cheap!
Sushi were only 105 YEN ($1.05) and sides e.g miso soup, chicken karaage, calamari etc were roughly only 215 YEN ($2.15) and drinks like beer were roughly 400-500 YEN ($4-5). It might not be the best sashimi or sushi but for this price it was still tasty. We were full on our 12th plate already and costed us roughly 1200 YEN ($12). Don't forget dessert for 230 YEN !
Line looks long from the outside but the line goes fast so don't worry. They also have other branches than Shibuya.
It's not hard to find, walk towards Shibuya 109 store and take the left road instead of the right and keep walking till you see MOS BURGER on your right and it should be on the street (small alley) right after that.