I'm having a blast with X3c. Doesn't seem to be bugging out on me at all and I'm a fairly extensive DAW user.
It's the reverse of X1.when that was released I couldn't even get it to run on my PC until the X1c release. Then things improved till final stability with X1d expanded. But many people weren't as troubled as I was.
Now I read about a lot of issues but I do wonder about some of them, whether they are bugs or system related.
As for the logic that one forumite used; it worked with the last version so it must with this current one. Well that's a myth that my personal experience well and truly debunked. It's just false reasoning. Sometimes a version release will just expose weaknesses in your hardware, OS combination etc that previous versions didn't.