You seem to have it running ok.
My experience was a night mare
Installed in a snap. Updated nicely, added a bunch of my favorite PPAs. No issues at all that I can see. And this is on a 5 1/2 year old Dell Dimension E520 with onboard intel graphics and only 1 GIG of Ram. It's running like a champ.
Friedrich Nietzsche: "Without Music, Life Would Be A Mistake" - So, what album are you NOW PLAYING?