That's great news Honeybee - I can't believe it happened so fast.
Ours took a couple of months. The process seemed like it went - apply to apply for the K-1 (fiance visa), get approved to apply and schedule the interview, actually apply for the visa at the embassy in London, come to the US, get married, apply to change status (become a resident), apply for a work permit while waiting for residency, finally become a resident. I think we started applying for the visa in March (?), got married at the end of June, and he finally got his (conditional) residency in January.
But once you get that K-1 you don't have to be seperated - and that is all that really matters.