Groupon can be great for finding a new hair stylist or other service provider, but when you have difficulties with a service provider, Groupon is a pain in the arse. The following has happened more than once, so that now I am "gun shy" about "pulling the trigger" at Groupon. When you call a service provider several times and don't get a response, Groupon will then steal much more of your valuable time (not to mention your patience). They will pull stunts like give you a credit in "Groupon bucks" -- until you finally just complain to your credit card company. The time you waste is not worth it IMO. I bristle just thinking about dealing with their 3rd world moronic "customer service" reps.