Hey never flown on Frontier before, don't know much about them, but am considering it for a flight and was wondering what I should expect. Are they a LCC in the vein of WN or B6 (who I would fly on) or Spirit and Allegiant (who I would not)? How is their service and their planes? How much nickle and diming is there? The airfares for the trip I'm looking at are about $150 cheaper round trip than the legacy carriers, and I'm wondering what I'd be giving up flying Frontier.