I've used it once or twice and have initial impressions
It is not yet cold nor rainy yet here so I am unable to evaluate performance.
However, first impressions based on fit, materials, and construction is positive. It is a contoured fit as advertised, and is sized pretty much perfectly for me - I am 6'1" with 38" chest. Quality of the jacket seems to be very high.
I returned this product before using it
I am 6'1" with 38" chest.
Front of shell only reached just under my belly button. - Understand that it's probably intentionally shorter due to it being a hardshell, but it's definitely an inch or so too short, even in riding position. Rest of fit including arms was great. Had to return.
By comparison, the soft shell stealth jacket in the same line by De Marchi fit perfectly.