Its a Debian / Gnome repack that has a long road ahead of them. Don't let me stray you away from getting your feet wet, but I would suggest CentOS, or if you are really in for some fun Gentoo and Slackware.
Yep I installed on a really old pc - performance excellent - also on a quite recent pc - amazing performance - also i installed on a mac mini - again excellent. Probably the best and easiest to install version of unix/linux i have found - HIGHLY recommended.