LivingSocial is a scam. Paid $ 39, - for a "Garage door tune-up worth $ 149, -" (voucher said "adjusting and balancing" garage door). Technician who would not even identify himself showed up without any other tools than a spray can and left without adjusting the door which is out of alignment. The company named on the voucher does not exist. LivingSocial's comment: "The service was rendered". No refund. Basically you prepay for services which later are not rendered. This is close to fraud.