The place is very chill and very clean. Us white folk tend to gravitate towards the pool tables, but since the place appears to be a Korean hangout spot, the more popular game is something called carom (?). It's tougher than regular billiards and not really my thing, but this is probably the only spot in Vegas where you can play it. Give it a try!
The staff here is also really friendly and they keep the place clean. I can see this definitely being a go-to spot if you're serious about playing pool (or carom).
My only complaint is that a lot of the Koreans enjoy their smokes (nothing wrong with that), but expect your clothes to smell like cigarettes if you spend more than hour in there.