1. Great grip, adjustment is a pain
Pros: Tons of grip on the foot pegs, great for riding boots. sturdy construction and plenty of adjustment available.
Cons: Any adjustment on the brake side requires at least partial disassembly. It's like they weren't designed with track-side adjustment or assembly in mind. Foot peg position, brake lever position and height all become a hassle to tune. Especially if you consider that you will likely need to bleed the brakes after each adjustment session.
Another possible con is that grip on the footpegs are so agressive that it doesn't work well with some tennis shoes.
Once I have the tuning right, I'm sure I will be happy with these but if I had to buy again I likely would look somewhere else due to how painful they are to adjust.