It's OK. When I was there, it was pretty slow. And yes there are tons of locals that play this place and they are older. I guess it's an area alternative to heading downtown, which is another place to find locals who gamble. Just a little better off in Summerlin.
The hotel is a great resort, but it's kind of out of the way, which is why the casino might be slow. I hope to return there sometime - had a nice time overall.