I'd almost be considered a frequent flier on them! Fresno to Las Vegas for dirt cheap mid-week. Jets are comfortable. Most planes have been re-fitted with the new seat-backs so your knees - if pointed strait ahead - don't knock the magazine holder.

They're solid, but many of their flights can be delayed because their planes can fly a lot of routes during the day. According to flightstats.com, a full 21% of their flights are excessively late (over 1 hr?) over the period 11/15/08 - 1/15/09 - compared with 10% for US air or AA.