now have the hoya anti-static cpl and it is less resistant to vignetting and just as good -- maybe not quite as well built but close enough and much cheaper...just like this one
I've had virtually one of each of the major brand's multicoated polarizers over the year. Currently have the B+W Kasseman low light loss (-1.5) and it's the best I've ever had. It's very, very neutral to the point it's hard to tell it's there sometimes (in a good way.) It does lose less light than the others I've used. So, less light loss and very neutral.