I got Sirius for free for 6 months when I bought my car last year and holy crap I loved not having commercials and especially news interruptions. Too many times I can remember listening to regular radio and being bummed out hearing about some mass murder somewhere or other things, while I was minding my own business driving my car. I will choose to consume news when I want, not when it's forced on me.
My programmed stations are Howard100/101,51,52,53,33 (First Wave).