if you have the equipment already, by all means go ahead. you'll get CD digital quality sound instead of normal AM/FM sound. bass response is CD-like quality. $10 a month is a good deal. if you don't have the equipment...ehh..u might wanna research on it more because the equpiment is an upward of $300. now ask yourself this
if you have the XM unit already:
"would i spend an upward of $300 for the equipment and $10 a month for CD quality sound through my radio? or would i go back to plain burning MP3s on my PC?
if you already have the XM equipent:
"would i spend $10 a month to get Digital music through my radio?
the most fusterating part of this XM thingy is if you don't have the stuff. you gotta buy the antenna, the reciever, yaddy yaddy ya... if you're willing to go through the process. GO AHEAD. sorry if i don't make sense. i haven't had breakfast yet.