We order from Feng on a biweekly basis. Good quality food at reasonable prices.
The rolls are usually 6-8 pieces and they go easy on the rice, which is appreciated. No over the top sauces, just good fish. My personal favorites include simple rolls with Yellowtail and Salmon. The shrimp tempura is good. Specially rolls are available (they do a great Volcano and Rainbow interpretation) but I like the basics.
Overall, I recommend giving them a try. Start with an appetizer, one basic, and one specialty roll. The soups and edamame are constantly tasty.
Lastly, a comment on delivery; There are not any crazy fees (a sore spot with me because I used to be a driver and never saw any of it,) which allows us to leave a larger tip for the person delivering the food. They usually deliver ahead of the promised time. We'll done!