you don't get a huge amount more for your money, mostly extra space for legs and a big more width. It's been a while since I flew Virgin's and these things change - you'll probably get a better food menu, maybe your own loos, maybe quicker check-in. (It'll probably detail the extras on its website somewhere.) But really you're paying for the leg-room. I do it for really long-haul flights because I'm old and stiff; but if you feel comfortable in economy, I'd suggest you stay there and save your money.