If you've visited the iTunes store any time in the last six months you've probably ran across the chart topping artist Walter “Wally” De Backer aka Gotye. If he wasn't "Somebody that you used to know" I'm sure you know him now.
What you might not have known is how Ableton Live plays a pivotal role in his bands live performance. In this video, from the Ableton website, he goes into details explaining how the software has enabled him to do more with his live performance.
This is one of the primary reasons I have settled with it as my primary tool. The reliability and sonic capabilities of the software speak for itself.