We had extremely negative experience with Kjus. Multiple hardware failures within a few months, customer service proved ultimately unhelpful (basically they refuse to do anything because the jacket was last year's model, despite being used for less than a year). The Toray membrane Kjus is using is also decidedly low tech for this day and age. Kjus is not real technical wear it's a fashion brand. YMMV of course.
Maybe I've just gotten lucky! I did just have a jacket serviced by them, from 3 seasons ago,and they did it for free.
I travel a lot for skiing (mainly US and Japan) so I don't usually bring more than 1 jacket. Given the choice between the Kjus and the Arcteryx Beta AR with Goretex Pro, I always pack the kjus. I haven't had problems with the jacket not being waterproof, windproof or warm enough and I don't like the stiffness and bulkiness of the AR.
Im not wed to any particular brand (I use Arcteryx gloves which have been fantastic) but have just found Kjus jackets most thoughtfully designed and reliable for my height/weight and a broad range of skiing conditions while traveling.
I used to be a Goretex snob and have cycled through a lot of brands over the years, but more recently I've realized no amount of marketing beats the simple test of: when you have to pick one out of your closet to travel with in unpredictable conditions, which one do you choose?
That answer may be different for different folks but I'm with Kjus for now.