I've only seen the interior of GA's new A330s in the ads, but they look like a huge leap forward. Their 'new' (to them at least) 737NGs are OK as well.
The problem with GA domestically is that they charge a very large premium over the other domestic carriers. It's not like in The Philippines were I found PR was often as cheap or cheaper than the competition. At least the Econo-Lite fares, anyway.
Internationally they are usaually at the cheaper end of the scale.