Based on subjective comparisons folk were happy with it when compared to other entry level offerings in the
$200-300 range.
Thanks, I had seen that review but was, similar to the commenter, skeptical when it was compared to a Hsu subwoofer. I've heard nothing but good thing about those, and I've heard nothing at all about kef subs- usually a bad sign.
http://slickdeals.net/f/2398895-kef-psw-2150-267-amazon
There seems to be a complaint regarding an internal buzz/rattle. Caveat emptor.