I’ve got an older version but it uses the same fabric, Pertex Equilibrium. It’s at the sort of wind resistant end of the soft shell scale, not particularly good with rain but sort of medium wind resistant and very breathable plus good at wicking.
If you want a moderate amount of weather protection, but very good breathability and wicking, it’s a good jacket – I like Montane’s cut etc. If you want something completely windproof and close to a waterproof in wetter conditions, it’s not that way inclined, if that makes sense?
The description on the Montane web site’s quite fair but talks more about wicking than protection. PowerShield’s a good fabric if you want more wind and rain protection but still decent breathability fwiw, have a look at their Mantra jacket for that.