So, I'm going to start by saying I really like these pants, and would recommend them to anyone.
I had a pair of 3L stoic shells whose zipper hit a snag (get it?). They lost a lot of functionality what with not being able to zip one side closed. BC has AMAZING customer service, and warrantied them for me. I would have loved to pick up another pair, but they just don't make 'em anymore, so I went with these instead.
Pros: Breathable durable softshell uppers. Durable waterproof lowers. Removable suspenders. Removable gaiters. Zipper pockets galore. Big upper-leg vents.
Cons: snug "athletic" fit on the legs makes most pockets good for little more than a phone, wallet, papers, etc... (Thin things.) None of them really fit a beacon without it being uncomfortably tight. No venting in the area that needs it most: the non-breathable waterproof shell. Cheap uncomfortable suspenders.
I'm 5'8", 170, with a 30"+ waist and 21"+ thighs. I went with the small because I was in between small and medium sizes, and the small was all BC had. The fit snugly, but are comfortable enough. I probably should have gone with a medium, but didn't want to be swimming with a loose waist.
The suspenders are thin, tough, course, hard fabric that will probably be very durable (and uncomfortable). I took them off immediately. (As noted, they were totally unnecessary for me.)
Because of the slim fit, the pockets won't really comfortably fit a beacon. Bummer. But I did love and appreciate all the pockets. It was great to have an option on either leg for my phone, and it's nice that all the pockets have great zippers.
The softshell uppers are soft, comfortable, and breathable. The vents are almost unnecessary, but still very much appreciated when heading uphill.
The Pertex Shield+ lowers seem durable and waterproof, but what I can tell you the most is that they're about as breathable as any other hardshell, which is to say, not really breathable at all. While skinning uphill, my thighs did fine with the vents open, but from about 3" above my knee to my ankles were just a wet swampy mess. I would up removing the gaiters and rolling them up. This helped a little, keeping my shins and calves a tad drier, but doubled the unbreathability around my knee, making things worse from 2" below my knee to 2" above my knee. It'd be great if the vents went all the way down, or if there was a second set of vents from the knee to the ankle. Maybe on the back or inside of the leg?
All in all, great pants that I would recommend to anyone looking for touring pants, especially if you DON'T have muscly athletic legs.