Strengths: Nice amount of cushioning - no impact soreness on 3hour runs (at 16stone), very nice tread - grippy but not obtrusive, barely wore down over the time I owned them. Also did over 500 miles and not one blister.
Weaknesses: Could be my foot shape, but when I tied them very tightly they 'crushed' my forefoot. Not tying them tightly meant they felt a bit too roomy on and did slip a bit.
Overall: Cushioning was pretty decent if not the plushest shoe I've ever worn. Excellent reliability, through some very nasty conditions. Do what they say on the tin.
Strengths: Grips on any terrain you care to throw at it, has a huge range of motion over the toe section for steep climbs, comfy but secure hold on the foot, breathable and still greaty when wet.
Weaknesses: Uppers on mine have some tiny cuts from submerged rocks in muddy terrain, but apart from that, none
Overall: A joy to run in, do exactly what they say on the tin. The company also gets a thumbs up for their ethics and ethos.