Blair; love the 'piggy' photo. Yes, this lens would be just a tad wide on the FF but not enough to be a bother. It's perfect on my crop body (60D).
I'm finding not that wide now. It seems to have a lot less distortion that my 17-40mmL set at 28mm.
I find myself using it more for video.
Great little lens, especially the price I paid for it! 
Here's a quick comparison against the 17-40L
17-40mm vs 28mm











