I really enjoy Mizu. I have called ahead and ordered sushi for carry out during dinner service several times and it's been ready in 20 minutes, which is how long it takes me to drive there. You get great service eating in the restaurant too. With the exception of Ginko in Tremont (which is $$$), this is some of the best sushi I've had. I'd say it's definitely worth a try if you're new to sushi or have lots of experience eating it.