There have been several passing references to Ubuntu in comments recently, so I thought I'd ask the question: what have people's experiences been?
I've been running Hoary on my work box, and Warty on my old-ish Dell laptop at home. Both have been fine, and work out of the box during install. (Anyone remember the pain of installing Debian Potato back in the days?)
About the only gripe I have is that the freeze policy on stable means the distro gets out of date quickly - so that useful packages tend to have old versions. The most annoying example for me is R, which in Warty is 1.9, whereas current is 2.1.

