I wouldn't put 808 sushi in my top 3 in Vegas, but it's decent. The employees always greet you once you come in. It's not a very big place so there's limited seating.
I've had AYCE here a couple of times. Their fish to rice ratio is hit or miss, not always the same. They don't have as many choices for their appetizers but the ones they do have are pretty good. I usually order their combination dinner (teriyaki salmon and shrimp tempura) because you get a good amount and it keeps me full. Their teriyaki salmon is my favorite thing on their menu. They used to douse it with sauce but now it's much better!
Their service is pretty good. Sometimes when they get busy, you have to wait a little longer for your drink but they're always very nice and polite.