Love this church...love it so much I got married here!
I've been coming to this church (as a visitor) since I was little girl and what got me at every visit was the first class choir and orchestra at every mass! Just beautiful music! But what would you excpect from a church in the heart of the World Capital of Entertainment?
At any rate, if you're a Catholic out of towner and want to get married, and cannot fly/drive in your own priest, then you'll have to do it here. The diocese of Las Vegas is right behind the church and they are the sweetest people ever. They are very strict with their marriage rules and how you can/cannot use the church but its all in good reason as the church is just gorgeous inside to begin with and they are a cathedral and very busy.
And because there's a big mix of locals and tourists, you won't feel out of place. At least I never did, and for a church as big as it is, they make you feel very welcomed. Father Larry Lentz, the pastor of the church, married us and totally remembered us when we visited 3 years later. So nice.
Tips for your visit: The stainglass mural in the very front/right corner of the church has this AWESOME mural of the strip in flames! But it's so telling of the times because all the casinos named are no longer in existence (except for the stratosphere). Check it out!