I've been here several times for AYCE as I lived in the area for a while, and Sashimi Island isn't open for lunch.
Sushi Bon is open for lunch AYCE and it has a patio too. Also, if I get off of work late I can come here and they still serve AYCE up until closing time. (Many places stop an hour or half hour prior). Once I came here and the only table was the one where you kneel in the front window. No thanks!
The grill stuff is fine, I like the beef teriyaki a lot. But they only serve mayo as dip with the katsu and other deep fried stuff. The sushi rolls have WAY TOO MUCH tempura flakes, and they taste kind of stale sometimes (which is surprising since they use so much you'd think they don't have time to go stale??) The dynamite roll has too much mayo, as well as too much tempura. A nice balance is needed in sushi rolls!