I don't know about the 'deluxe kamiks' but the normal ones are really crappy. Not waterproof about the rubber shoe part. Also, wears out quickly in the nylon material part above the rubber.
My bros swear by Prairies. Can't buy them in my area, though. They are apparently a lot lighter than Titans. Might be 'worth the drive to Acton" .
http://weaverdevore.ca/products-page/winter-footwear/mens-winter-footwear/acton-prairie-insulated-rubber-boot/