Didn't Branson want to name Economy riff - raff class ? I thought that quite amusing, even if others did not.
I've flown them LHR - LAX and EWR - LHR. The Lax trip on the airbus 340 - 300, and the EWR leg on the 747 - 400 ( S'posed to be an airbus; but due to high demand our plane was replaced by the mighty 7474
They're all very friendly, the FA'S are polite and helpful, and I liked playing Super Mario at 35,000 feet. They're innovative, and do seem to cater to the younger, trendier flyers with their boarding music and psychedelic decor.
Their safety display is amusing as well - it's a cartoon thing that plays on the PTV instead of the FA's doing their thing in the aisles.
No complaints from me, and I'll probably be flying them to Vegas in August.