The level 6 emperor drysuit is a very tough and dry drysuit. Aimed at whitewater kayaker but I have only used it sea kayaking.
Pros:
Very durable
Very dry
Good looking
Top quality
Canadian made (excellent quality)
Adjustable
Price
Cons:
Zipper is difficult to do up solo (gets easier though)
The material protecting the head gasket is a bit tight to push some heads through
I have been more then pleased using this drysuit off Canada's east coast throughout a couple of WI ter seasons (spring and fall too)
Highly recommended and is just as good as kokatat (maybe better)