We try to go there at least once every time we are in the Valley. It is an experience no Strip or Native American property can recreate. Mostly small screen penny and nickel machines. A "bar" area that looks like grandma's kitchen, with staff that looks like grandpa or grandma.
I remember vividly the first time I went to one on Boulder near Boulder Station. It was about 3 in the morning, had to be buzzed in. Place full of large biker types with big beards, all playing friendly little penny machines with cartoon like ducks and multiplying gopher wild symbols. A white haired women with a bun serving beer in bottles right from the fridge. Rough looking crowd, but very quiet, everyone minding their own business.
This may not be everyone's favorite kind of place, but if you want something different from the usual scene this is it. They even have a club, and will send you offers to your home. You may have friends back home who have Total Rewards cards, but I bet they won't have a Dottys card!