I'd worn shorts for years, and when my latest pair wore out I figured I'd try bibs since many cyclists rave about them.
Well, I tried two different brands and didn't like either pair. The straps reminded me of being in a car with the seat belt cinched too tight, and I've since gone back to shorts for good. BTW, I don't get the "cycling shorts falling off my waist" thing. I've NEVER had an issue with that (of course, being 6'02" 160 lbs may have something to do with it--my belly is flat as the Kansas plains).