There are a few reasons why I dig this trailer. First, they seem to have actually brought together a cast of varied ages, weights, and looks for their show. Ever since I read Tina Fey's Bossypants that points out the obsession with hot 20-somethings didn't really exist before Friends, that has been a sticking point for me and new network shows. Particularly ones that purport to be about the cross-section of people who would work at a gas station.
Secondly, I think this show has good potential for a decent-length series run. There are enough characters with back story and complicated relationships available in the initial concept to make a really interesting drama. Also, if done right, the reality of financial hardship and sudden windfalls could be really compelling to a contemporary audience.
Potential areas of concern: if there is a dead body or baby drama in the first eight episodes, this show is doomed. When you're dealing with a premise that includes a huge downpouring of money, the temptation to up the scale of the narrative could prove too sweet to pass up. The only way this show can be good is if it keeps its roots in normal people problems, and how money can complicate an already unstable environment.
Still, I was smiling all through the preview. It just looks so darn sweet. Yes, gas station robberies are considered "sweet" to me. What do you want, I just finished catching up on Breaking Bad. I'm a warped human being, and it's Television's fault.