A friend of mine introduced Hi Na to me a couple of years ago and I've been championing this venue ever since. Their prices (for Toronto sushi) is borderline pricey, however, for the quality of the fish you receive - it's well worth the money - and then some. Hi Na is located west of the Downtown core (Etobicoke/Toronto) in Mimico, which is an up and very coming location for more quaint and higher end gastro pubs. It's not quite there yet in terms of back to back restaurants, but it's slowly getting there.
The service is standard for Japanese resto as they are very courteous and respectful. The Lobster, Spider and Unagi Dragon rolls are delicious. Quite frankly, all their rolls are above the norm in terms of quality, taste and freshness. They are one of the few that serves great sushi, sashimi, cooked and specialty items that are of all high quality.
If you haven't been to Hi Na's before and you are a fan of quality fish - without paying the prices of Ki and Hiro's downtown... then this is definitely worth a trip!
You get what you pay for... and then some.