Weaknesses: Personally they give me really bad blisters on both arches, due to the control they give.
Overall: I was recommended these shoes following gait analysis, but after about 20 miles in them, they hadn't worn in and were giving me blisters. Have tried lots of different socks, to no avail, and now i've done approx 70 miles in them, but i can't do more than 4 at a time without blistering. Worst £75 i ever spent.
Weaknesses: Price (if you pay full price that is) Slippy soles in the wet.
Overall: Got my 13's in December, after Foundations started giving me blisters on my arches, and what a difference!!! Comfy straight from the box, not a blister in sight. I'm delighted with them.