I'm not sure I understand the mixed reviews of this place. Fin has a nice atmosphere - busy and lively but not so busy that you will have to wait for a table. They even take reservations.
The food is delicious and the menu is quite large. I'm a big fan of the pork belly skewers (they come in either sea salt or teriyaki - both are good), the takoyaki octopus balls, and the salmon lover (salmon sashimi served 3 ways). On a second visit, my friend and I shared the "3-storied bento box", which includes a small serving of about 12-15 different items, and is a great way to experiment if you're a little adventurous.
My only criticism: I was a bit disappointed and confused that the egg custard, which is served in both summer and winter versions, was still being served in its winter version at the end of May (and while it was 30 degrees).
Prices are quite reasonable given the quality. Two people can eat dinner for between $30 - $50 total, without drinks.