Like most other reports on this site - I purchased a voucher though LivingSocial late November and am still waiting for the product to be delivered! And this is despite paying for priority delivery.
It took 4 emails from me to them to be told I had not redeemed my voucher properly. I was promised the product with 5 - 15 business days and a tracking number when they had one - still waiting for both of those things.
Buyer beware - be very very very aware!