I'm pretty happy with the Bose system. It sounds very clean for a stock setup. I have a $4k system in my FJ Cruiser so I know what a great system sounds like. The Bolt's Bose system doesn't even come close at extreme volumes, BUT it still sounds pretty decent. It doesn't HIT like my FJ does, but it's clean.
Every now and then I take my FJ to work instead of the Bolt. It's a treat because I can crank the volume so loud that I can sing along without hearing myself. "MOVE BI^$# - GET OUT THE WAY!"