I mean, I've owned many Mervin snowboards from Gnu and Lib Tech but I've never owned any clothing pieces from them. Suffice to say I was very impressed by the Brainstorm jacket when it arrived. It's even better than the overpriced Volcom Baldface jacket I ordered along with the Brainstorm.
A thing about sizing. From what I can tell this jacket fits a little longer in the length. For example, my medium Brainstorm feels like an extended medium (think of it as an anorak style). The tail feels a little longer. Despite this extension the armpit volume does feel a little restrictive; the armpit zippers they used are very wide and stiff and might be the contributing factor to the tight feeling.
The outer material is indeed very soft but I can't judge how well it waterproofs since I haven't been able to test it out in the real elements yet.
The only thing I don't like is that only a boring black colourway is available (I don't want to look like a tiny, disappearing rock on the slopes from far away). I wished they made more neutral colours like grey, navy, or dark forest green, etc. But having only all black, or super ugly, whacky yellow from Lib is not necessarily the most appealing. Lib, stop making ugly colour patterns and get a fresh loving with classic neutral colours.
All in all, this jacket ended up being superb in quality (much to my surprise). I got this on sale from Whiskey as well and I'm glad I did. Despite the boring all black colour I'm very glad I bought this.