Parking is difficult so go after 5 PM or on the weekend or hire a cab. They all know the way. There are many wonderful restaurants and beautiful chapels away from the strip and downtown areas so don't limit yourself.
Brochures are very deceptive.
Your chosen site may look quite different in person. Referrences are much more reliable. Frequently an establishment will say they have a consultant on staff. That means they have a sales representative. If one service refers you to another it may be because they get a referral fee.