Kingfisher is a great all round yak.
I think I prefer to paddle it over my stealth.
it isnt brilliant in chop, and in any more than 10 knots a rudder would be nice. But I think overall the kayak is on par or better than most yaks around the $1500 mark. Especially if you plan on kayak camping.
It is not designed as an offshore boat, but with a careful choice of launching location it is able to get through smallish swell.
As far as paddling like a barge, I find I can pull almost as good a speed out of it as I can the Stealth. Steering is a little bit slow at times, but unless you are trying to cast into a snag in a flowing river that isnt a huge problem. I have used it for everything from bream comps, to Pelagic fishing, to taking it on a charter boat in the whitsundays.
I wrote up a review here:
viewtopic.php?f=72&t=29623&p=312573#p312573