I really have to try to find anything wrong with this jacket.
Definitely one of the best mid-weight down jackets on the market. I love the cut, weight, warmth, etc. I have an in-depth review with lots of pictures at http://www.gearthirty.blogspot.com/2012/02/rab-neutrino-down-jacket-review.html. I have also be added pictures of my wife's neutrino endurance so women can get an idea of the fit.