Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I wanted to believe, but...

This is my third XM unit - Roady, SkyFi2, now this one. I bought it because I was impressed by the specs, namely the MicroSD slot and the ability to record songs for later playback. It felt to me like the ideal mix.Out of the box, it felt flimsy, and my hunch was right -- the unit died on me completely (won't turn on) about 18 hours after receiving it (only 2-3 hours of use). Two hours of troubleshooting with technical support has only confirmed it being busted. XM Radio has been unpleasant, to be polite, dealing with the matter (I bought it directly from them). This being the third Delphi unit to die on me, I'd avoid the brand... and at this point, I'm done with XM, after four years.