The quality is very good, and you can't beat the price. It's located about halfway between the Pisa…read moretrain station and the Leaning Tower of Pisa. I believe it's on the sane strewt as Sephora, next to many other stores and restaurants.
The fish was fresh, the rice was good, and it was CHEAP!! 8pcs for 3 euros is great. The rolls with sauces were about 6-7 each, and the nigiri was pretty affordable, too. I'd definitely go again.
Note that it is very casual and very small. There's no air conditioning (which isn't abnormal in Italy), but it's something to keep in mind if that's a dealbreaker for you.