La Prima is as authentic as you can get. If you are there on a weekend, there is usually a group of elderly Italian men playing Briscola. That basically indicates that it's Italy right there. I also want to point out that their espresso machine is a beautiful machine and I wish I had it in my apartment. You cannot go wrong with their coffee. One person takes care of you the whole time. They hand grind each order which maximizes freshness of the grounds. I ordered an iced coffee and it was funny that they put the iced coffee in hot coffee cups. There was a self counter that I pour cream and simple syrup to my hearts content. I do not know what type of beans they use but the resulting flavor is smooth, not acidic but still robust enough for those who need a caffeine jolt. La Prima has become my go-to place for coffee at the Strip.