Abso-freaking-lutely!!
I've bought 2 Groupons for laser hair removal and have been thrilled with the results. You have to have the right combination of skin tone and hair color though (light skin + dark hair). I only did the lip/chin area though so not sure how the legs will be. It's not painless, just a warning. I take Advil before I get the procedure and use a cream with lidocaine on the areas being treated. Bikini Zone has lidocaine, just an FYI. And, it usually takes around 6 treatments to an area for the best results. If your Groupon is for less than that, keep in mind you might have to pay regular price for the remaining sessions.
I would research the company. I googled the company and found some reviews, most were very positive.