I had studs on the front last winter, and it was awesome. Definitely superior to no studs... I didn't bail once! As others have said, skidding out on the rear is recoverable, but when the front slips you're down.
Calgary's winter is crazy enough that it can jump back and forth between freezing, thawing, snowing, icing, sunny, dry, raining... within 24 hours. I like having the tires that have studs only on the sides; they protect you from slippage, but aren't too bad on dry pavement. I've got these ones
(not for a fat bike though).
I'm planning to get a second studded tire this winter for increased uphill traction, but I would certainly recommend starting with one.