Ubuntu linux made me shed a tear this weekend. I recently switched to Gentoo and, before that, I used the LFS book to make my own distro, so I don't think I was really ready to watch a fully usable (X, Gnome, Office, and all that) distro be installed in 20 minutes. I think my LFS took about 3 or 4 days before I could start using it as my home PC, and Gentoo took all of one fully day to compile everything up to and including a Gnome Desktop. I'm sure there are some minor benefits to compiling EVERYTHING for your system, on your system, but I prefer convenience! This goes double for slow systems. Compiling everything (via portage/gentoo) on my 600MHz laptop was not a fun task. Even w/ distcc, I shudder everytime I think of the day I'll finally run emerge -uavDN world on it. So, Ubuntu gets two huge thumbs up from me. The added bonus was that I installed it for my mom!