Rating: 4 / 5
General impression. As advertised. The two extreme temps I've worn these pants packing a not very light total pack wt of 16-19kg (not exactly backpackinglight) have been a windy, off & on rain, cool 3*C and a sunny, hot 32*C & dry (RH~15%). The pants provide adequate wind and moisture protection under the cool conditions. Hot conditions were about as comfortable as any long pants can be. Found them no hotter than any other light weight, breathable non-vented long pants. Major difference, advantage of these pants is the feather weight mass.
Would I buy a 2nd pair? Yes, at the sale price & if these pair were at the end of their life span.