I prefer bibs and wear these 98% of the time. The 2% was last summer with shorts from Sugoi on a deal to good to pass up. The shorts were nice and easily comfortable, but the waist band was a little tight and rolled over, making it slightly uncomfortable. I also remember pulling them up, they don't stay in place like bibs. I think shorts are good for people with a flat stomach and slender build.

Bibs don't have a waist band, so I find these more comfortable on my medium to large frame. I've read where some people don't like the straps over the shoulders, this could depend on the size of bibs and height of the person. I'm 68" tall, don't even notice the straps while riding. I also like how bibs don't move around, they keep the chamois in place.

As for PI, I like their products, nice gear. I don't have that particular bib, but the reviews are pretty good.

Good luck on whatever you decide......