Congrats to James.
Between this thread and the Golden Age of Dragon, I've been thinking. The older issues, I've read them enough to feel like I know Roger Moore, Dale Donovan, Kim Mohan, and others. The present staff, the names don't scream out recognition to me. But, in this age of the internet, it's so much easier to be in touch with them; how often have Jacobs and Mona posted here? Plenty of times on the Hordes of the Abyss thread, and plenty of other places. The Paizo boards are even better for this; I especially love the Campaign Journals of Jason Bulhman runs Eberron(wark!) and Erik Mona DMs Greyhawk (long overdue for an update). From those journals, I'm pretty sure the Paizo crew would fit in fine with my groups (Mike Mearls's language is particularly fitting).
So, from what I've seen in the magazine, and what I've seen on the boards, I'd say James Jacobs is good people.