Well, here's a success story of sorts. Now that my groove3 pass has expired, I've gotten the chance to start using X2 for real. My daughter gave me some tracks she's recorded in her bedroom studio and I went to work. I'm a total noob so the results aren't the greatest (nor are the recordings done in her square untreated room) but I worked for a couple of hours with not a single hiccup.
At one point I realized that it had been over an hour since I'd saved anything (though I do have autosave on), I normally save every few minutes no matter what program I'm working with.