I have used a similar discount service like Groupon where I live just after I moved into a new location. I wanted to market a service that I do not see many of the local massage therapists advertising, and wanted to drive new potential clients to my door. This was exactly what I needed! I knew that I was not going to make a incredible amount of money, but it has effectively given me a steady stream of business for the entire winter season without typical holiday deals. It was also very beneficial to have had created a effective website w/links to my online scheduling site (Schedulicity.com) to handle the flow. If you are prepared and know what exactly is in the contract do it!