I loved this museum, and let me tell you, I'm not even a Liberace fan.
You'll learn about the history of the bedazzled man himself, you'll see his outrageous cars, you'll gawk at his over the top (and HEAVY--250 lbs!) costumes, and maybe you'll even leave with a Liberace vest and hat from the gift shop (see pics).
There are two parts to the museum (they're across from each other in the parking lot). One houses his cars/pianos and the other houses his home furnishings/costumes. Photos are allowed, just don't use flash. The people running the place were really nice and seemed eager to educate you on anything Liberace if you inquired. Overall, a definite two thumbs up--see it for yourself!
*See pics*