I mean, it's AYCE, guys. What do you really expect? They're pumping out food as fast as they can to a usually packed building.
I go here for their late-night menu fairly frequently, and as far as I'm concerned, it's better than most AYCE places out there. None are excellent, it just doesn't exist (If you want good/cheap sushi in richmond go to MATSUYAMA after 9PM.)
They're always busy - Either call ahead or be repaired to wait. Once you're seated, there's usually a wait before you get your first round of food, but it's always hot (their sunomono included).
The service is lousy, but nobody is ever just standing around so you can't really get mad at them.
Far, FAR better than Su Shi Ya on every level, better food, better service. The price is the same, and Aji's late night starts half an hour later, but it's worth it.
Again - It's decent AYCE, better than Su Shi Ya (it's closest AYCE competitor), and Richmond Sushi. It isn't as good as Diamaru, but that's closed now.