Strengths: out the box and ran a marathon in them.
Weaknesses: prefer them to be slightly lighter still.
Overall: about 40gram light per shoe than the old 10's. the cushion is slightly firmer and allow for faster running. got them on sale for £75 so it was a great buy.
Strengths: Lightweight, stable, comfortable & very breathable!
Weaknesses: slightly over priced
Overall: very comfortable for distance up to 15 miles anything more may feel bit hard on your feet. however it did not stop me from wearing them for half marathon to full marathon events.