I think a big reason why I was disappointed by this place was that my friends really hyped it up.
Good - love Mission, service was pretty quick and friendly, cute restaurant, sashimi was pretty good.
Bad - I don't know why people love those huge rolls. I really don't like having to break apart my rolls to eat them. While they were nicely presented, I didn't find them to be particularly memorable or appetizing.
Also something that put me off a bit - I ordered a beer, and while I am fairly young, the server waited until after I had ordered and drank half of it to ID me because I look "really young". I don't mind being ID'd at all, I'd just rather it happen when I order my drink. I felt sort of embarrassed after that since I'd already drank most of it and I felt like some punk kid trying to sneak a beer.