Groupon & Medical Spa Offers

Groupon is gaining traction in a number of cities and doing a fair amount of business if their testimonials are a real indication of what's going on.

I received an offer last week from one of the local medical spas in the area for 50% off of some general day spa treatments (facials and massage).

I can see that you might generate some real traffic by offering high demand services like laser hair removal, but they might end up loosing you money since Groupon also takes half of all sales generated by the offer.

Is ayone having real luck generating traffic with services like groupon? Has anyone tried it?