I use Fedora on a laptop. Upgraded to Fedora 18 yesterday. Really easy, though I think there is still enough room to make it easier.
e.g. slightly more info during the upgrade (you can press escape, but that is way too much info), integrated notification, a GUI instead of a command line application, and no manual steps like "run grub"
IMO the only info I'd want during the upgrade is an ETA, a reminder that it is upgrading and something to know that it isn't stuck.