I LOVE it. Toro is my favorite. (Fatty belly tuna.) It has a season and is sometimes hard to get. Otherwise, I like salmon, any other type of tuna, white fish etc. No shellfish, because I'm allergic.
They make vegetarian sushi (sushi means the way it is prepared, with the vinegared, sugared rice, sashimi means raw fish) My middle daughter is a vegetarian, and we get orders of vegetarian sushi all the time.