FWIW, I tried Buffet@Asia at Flamingo & Eastern on my just-completed trip. It's not casino-affiliated but is popular as one of those Japanese-Chinese hybrids.

I'd give it about 3 stars out of 5. The weekday dinner price was $16.42, which had gone up, supposedly. Still popular, including with people of Asian descent and mostly local.

The strongest suit by far is the sushi...there must have been 35 or so different roll varieties, too many to fit on the rack next to the chefs so they had a second rack. They would also put out salmon sashimi but that would disappear quickly.

I think the crab legs and the mixed seafood & broccoli were the star dinner-only items. The mixed seafood was being actively cherry-picked because people didn't want the krab or squid and wanted the shrimp and sparse chunks of what might have been lobster. The crab legs were even smaller than you might see at Circus Circus and had to be cracked, which was a lot of work for the amount of meat you got. It always amazes me why that's such an excitement generator among the masses...you either get the skinny legs and have to work hard or pay quite a lot more for the bigger stuff that rarely shows up in buffet form.

There were other staples like the miso & wonton soup and some so-so hot dishes, plus the fruits and bite-size desserts and soft-serve ice cream machine.

It's probably a better value at lunch. They have something like 3 other locations in the valley but I think the one I went to was closest to the Strip.