The Svaha cardigans are fantastic, and I own about five of them, including that one. They wear well (I've had the constellation one for .. four years? Five? And it's a little faded, but otherwise holding up well.)

Seconding that they usually do pretty serious sales regularly, and signing up for their mailing list is worth doing for discounts.

(I find their dresses are a little more body-con on me than I want even at the 5X, but the cardigans are fantastic for size. Also, pockets.)

Every time I wear one of their cardigans around other people, I get at least one person knowing where to get it, too. (I really need to ask if they can send me some business cards or something.)