I have one (j501), very warm and top quality, its more than you will ever need in the comfort warmth dept.
As stated the knitted cuffs can be an issue under the new double layer cuffs like Rukka etc when trying to get your gloves underneath as well but not been a problem for me personally. If it is I might just cut the knitted cuff away next winter.
Pricewise I think they are about £120 or thereabouts.