So far, Salix is working remarkably well. I've installed Debian, in which my network card mysteriously became slow, and CentOS, which had an old buggy version of XFCE, before remembering Salix. Everything I need to do works perfectly out of the box.

If there was one thing I would like to request, it would be more packages available through installation by slapt-get. SlackBuilds are fine and all, but it's nice to be able to upgrade all installed package with a single command.
When I have time, I'd like to find some way to contribute to Salix. The slkbuild tool looks like approachable for packaging, so maybe I will try that for some package I can't find in the future.
Thanks again for the wonderful Linux distro!