There have been a few threads on this before which may give you more answers, but I think in the end it boils down to personal preference. The bib shorts I have have no waistband to dig in, so they are quite comfortable, however ladies with more boobage tend to find the straps uncomfortable (for a novel, but somewhat kinky strap solution look here: http://www.assos.com/en/womens/detai...icle=52&color=)
The other problem is getting them off again to have a pee.

I have one pair, but I won't be going out of my way to hunt down more.

Hope this helps,
Bron