financial district sushi? [San Francisco]
A long walk from the Westin (half an hour or so) but went to Roka Akor the other day. I would absolutely pick Roka Akor over Ozumo the current vibe-y Japanese restaurant near the financial district. Food is tastier, a good balance of seafood and meat options. Sushi at Roka Akor isn't equivalent in quality to the fish in LA but it's better than a lot of the fish served in SF.
Don't go for the signature tasting menu unless you really want to try the little bites - the rest is just a combination of items from the menu.
Cocktails were good as was the wine/sake list. Service was friendly and pretty knowledgeable - though cocktails took a marked long time to get to the table.
Atmosphere is not SF at all. Very Orange County/Vegas. Not particularly my scene but with the dearth of decent sushi options I may come again. I was very content with my meal.