Do we really need this hotfix or wait for the WQHL version? I find these drivers sketchy in my opinion. It's just that I know they usually release regular versions and I am not used to DHC drivers.
I'd say don't use hotfix drivers unless you're having the specific problems it mentions fixing. It's not all that likely to cause problems, but some risk for no reward doesn't make much sense.
That said, from my experience I haven't seen a big difference in stability between hotfix drivers, beta, and WHQL myself that I recall.