My first time at Oishii, I had no clue what to order. The people that worked there were very kind and helpful, and helped me choose. I've been back several times, and gotten the bentos, bowls, and sushi. I haven't tried any of the Korean food yet, but I will soon.
The Oishii roll is very very good.
The only downside to this place is seating, as I've been here on multiple occasions and had to take my food to go because there were no tables/chairs available.