Strengths: Can be worn -5c to 30c, with only a very thin under for additional wicking. Very windproof, and rainproof if needed. The sleeves zip off when it warms up.
Weaknesses: None, even the price which seems stiff at first feels good value once I've added up the performance/wearings.
Overall: The long sleeve version is so good, I also bought the short sleeved version (which is thinner), for summer rides.
Strengths: Protection and price (first one £50, second one £33 - for a blue one!)
Weaknesses: Visor is low
Overall: I've just replaced my first one with another. The first enabled me to survive a crash (25 mph downhill onto rocks); it took a beating and just broke the visor and a long 'crease' down one side. I smashed my wrist, cracked ribs, opened up my leg, dislocated shoulder etc.