When we got a new car recently, we started to hear other people strongly recommending to tint the car, so when Tint-a-Car offered $250 off the price of their Formula 1 tint, I gave the Perth store a call to check how legit the deal was before buying the group buy from LivingSocial.com. Had a good chat with the guy and he understood my skepticism about the deal so I felt confident this would not be one of those dodgy deals. Also, another check is that they are a franchise so if there are any issues, we can always speak to the head office to complain.
Well the car hasn't gone in for the tint yet but I've since noticed similar deals being offered by another Tint-a-Car store but that was for only $150 off. Pays to know what's going on around you.
Update: We received the car yesterday and it was nicely tinted for $260 (including the $15 for the voucher) after the $250 discount. They allowed us to receive Frequent flyer points on the transaction and Tint a Car offers a lifetime guarantee on their workmanship. All up, money well spent and another successful Perth group buy.
EDIT: Just found out that Tint-a-Car is now offering 50% off the Formula 1 tint via the website hotdockets.com.au or on the back of your supermarket receipts. In that case, the offer was not as rare as I expected! It also comes with free car detail!