I've never had a problem with a storefront vendor. One took almost a day to send a code, but I got it. There is some code merchant system and it seems like anyone can set up a storefront. I mainly stick to the ones listed on ultravioletcinema.com. Never had a problem with these and some of them have instant delivery.
I guess the most common risk is that you never receive your code and lose a few bucks. To me the bigger risk is that the code was not legitimately obtained and you may put your account at risk for redeeming it.
Still, I'd trust a storefront more than most individuals. Read through the scammer sections on the G+ groups. Full of rip offs weekly. Last fall I bought a code from an individual on G+. There was a scam alert about the seller which accused him of some type of fraud in acquiring the codes. Lots of talk of possibly frozen accounts, but nothing ever came of it as far as I know.
I guess the most common risk is that you never receive your code and lose a few bucks. To me the bigger risk is that the code was not legitimately obtained and you may put your account at risk for redeeming it.
Still, I'd trust a storefront more than most individuals. Read through the scammer sections on the G+ groups. Full of rip offs weekly. Last fall I bought a code from an individual on G+. There was a scam alert about the seller which accused him of some type of fraud in acquiring the codes. Lots of talk of possibly frozen accounts, but nothing ever came of it as far as I know.