I've been using Pandora for some time now, and like it a lot. I like 1960s-'70s rock; Pandora has a very wide selection of this type of music, including songs I either haven't heard in years or just plain don't hear on terrestrial radio anymore (if they ever played them in the first place; I'm convinced some of the songs I hear on Pandora but have never heard on local radio here in northeastern Ohio were strictly regional hits, never having gained enough popularity to go national).
I've all but given up on terrestrial radio since I found Pandora (I have Winamp and links to several other media streams as well, including WLS-FM in Chicago [
http://www.947chicago.com]). IMO, it sounds great through my stereo system; I wonder if some of you who say Pandora has "poor sound quality" are listening through a pair of generic computer speakers (most of which, the ones that come with most computers as standard equipment anyway, have only one speaker and terrible frequency response).
Pandora mentions on its website (
http://www.pandora.com), however, that its music streams will sound very good through any stereo system; the site even has detailed instructions on how to connect your computer to your audio system. I did just that some time ago (long before discovering Pandora) and, once I heard the results, I knew I'd never want to go back to the puny "Infinity" speakers that were included with my computer.