I used Sienna to organize my daughter's 21st birthday in Vegas. We could not have had a better time. We were treated like royalty and I didn't have to worry about a thing. We walked straight past all the lines. VIP status all the way. Party bus was perfect, kept the party going and kept us out of the cold. All the drivers, concieges, etc were pleasant, helpful and 100% trustworthy.
I wish all my travels could be this easy. I wholeheartedly recommend Sienna for any plans you have for Vegas or any of the other cities that they service.