Everything works great for me. I went at least 50+ games without a crash (while abusing rapidfire in almost every game). I only crashed once so far, but it seems that it was just a random bug.
UPDATE: After a relog, I'm finding that rapidfire seems to be d/cing me very often. A good way to tell if you're gonna get D/C'd by rapidfire is if, when you use it, your character starts moving on it's own.