The biggest con is that you won't want to fly on any other airline after you've flown with them. Seriously.
Right now they have a flight on our travel day for a total of $42 less (for the three of us) than what we've already paid for Southwest...and we're considering buying the new VA ticket, and just using the SW credit later.
Despite the other con, paying for even the FIRST checked bag, which means we'd end up with $2 after paying for the bags. Oh, no, just checked, they changed it since last year...we'd actually lose money in the process, b/c the bags are $25 each.
Gorgeous planes, awesome in-flight entertainment system (which works, unlike my screen on my one Jet Blue flight), comfy seats, and "mood" lighting in the cabin (glowy lights that go from reddish pink to blue to purpley) that I do strongly believe tames the savage beast. Seriously, I was onboard when the airport was shut down and security had to search the plane twice, and this was AFTER 1.5 hours delay b/c of weather at our next stop (SFO), and no one was screaming...I think it was the cycling, calm Zen lights.
I love VA!