My major complaint comes down to paper cuts and included libraries.
little things like input focus don't work correctly in Wheezy and I relied on some libraries (eg onboard keyboard)
that is not in Wheezy. Like them or not Ubuntu 's package was well polished and rounded.
And I am using my computer for more then just cnc so that was important to me.
And anything that makes a casual user's life easier is a good thing for linuxcnc
