See What ZMedia had to say about ShutterBooth

Why Shutterbooth? We reviewed all of the available services and even looked at purchasing photobooths ourselves.  What we determined is that it is important to have trained experts on hand to operate the booth during a reception.  We want people operating the booth to be experts who do this every week.  The “do-it-yourself” approach doesn’t make sense to us when our teams areour concentrating on photographing a wedding.  Having a dedicated team there to set-up and man the booth is the way to go. 
We also felt that Shutterbooth offered the best combination of service and pricing. In addition, we love their photobooth unit. Its much easier to move in and out of a reception – especially in tight or hard to reach areas.

http://zphotomedia.typepad.com/my_weblog/2009/01/photobooth-services-at-z-media.html