During my free trial of Onstar my power steering went out. Figured I would try roadside assistance since I was out of town and in Canada to boot. Lady wasn't helpful at all. Told me to drive (hello, power steering is out completely lady) to a store several miles away and put fluid in it (it's an EPS system...so no go). Called Chevy roadside and was quickly hooked up with a rental, tow truck and dealer to make the repairs. Might be nice for the peace of mind knowing crash response would be quick, but 9 times out of 10, somebody will be nearby to help out or call 911. The situation I had was one I could have made tow/dealer/rental calls myself, but wanted to see how service was from onstar and chevy roadside. I got my answers...