Just clarify my comments on check-in upgrades, as others have pointed out you cannot upgrade on VS with Skymiles, but it may be possible to use VS miles on the day of departure. Also I have seen VS sell upgrades at the gate.

FYI AMEX are doing a 35% bonus on transfers to VS til the end of November.

Please report back on your experience, rwoman. I'm very interested to hear what is offered on VS ex-ATL.