Strengths: Didn't need breaking in, very comfortable until shin splints at 230 miles - every time!
Weaknesses: I've had five pairs of these, and have noticed looking back at my training diary that I get shin splints each time I get to 230 miles. At 9.5 stone I'm not massive and expect better. Have had them checked by four different gait analysis places, all of whom reckon they're the right shoe for me - when they're new, but as soon as they start to wear, they wear quickly. Have now changed to Brooks Adrenaline GTS, apparently the support extends to nearer the heel and so hopefully will solve my wear problem....fingers crossed!
Overall: Not buying any more of these! I guess they're a great shoe for some, but not for me!