Don't know what else I can say about jetBlue. After being on Boeings for most of my adult life, I do say the 320 is very nice. The FMGS is a bit of a step backwards, but that is apparently being corrected in the next 18 months or so.
Drawbacks? Not many, I suppose the biggest is being a startup. But the management here has a proven track record. Pay could always be better, but for a start up is is very good, not up to UAL but not far away from SWA.