It’s fast enough for event work. Even faster on the newer bodies, X-T2/3, X-Pro2, X-T20, E-E3.
Exactly. No, it's not "pretty darn fast," as the 35 f1.4 I'm comparing it to is not a fast AF lens. But it's fast enough. It clears the hurdle of "annoyingly slow?" nicely, but it doesn't vault into "surprisingly quick" territory.