SearchOpenSource have a piece on the adoption and progress of Ubuntu.
Read it here
But for every user like Jones, there appear to be several like Michael McDaniel, a value-added reseller at Orlando, Fla.-based Configuration Concepts Inc.
“The person there at Ubuntu that heads up quality control should get an award for assuring Ubuntu is as good as it is,” McDaniel said. “I've used many distros and feel Ubuntu is good for home or office. It truly is an OS for non-geeks and makes everything so easy — from installing new software to keeping updated. Anyone can do it with ease,” he said.