Overall: My current trail show of choice but have Inov-8s for more extreme stuff. NB this review relates to the current model which differs slightly to the one pictured.
Strengths: Great grip in the wet and on rough trail/fell. Robust uppers cope well with scree etc.
Weaknesses: ummm.... None really. Lacing can be a fiddly at first.
Overall: I use these as my fell shoe of choice and also for rough trails. Great on wet mud/grass too and coped suprising well on snow and ice last winter.
Overall: If wet, steep, mud and grass are your thing, then this is the best shoe on the market. However on a mixed surface run, which had some loose scree and rock, they got ripped to shreds.