Chuck's bikes not only has them cheap, but Chucks bikes IS TSUNAMI. He specs the frames from leftovers and they are built overseas (depending on which frame it is). I have a Tsunami tandem and I have no complaints with it at all. It is a really great deal IMO as you get a lot for your money, but I agree with Boudroux, Pro level it aint. You pay peanuts and get a solid frame with some rough finishing. Again for the money, it is a good deal, but Pro level, that is just too high of an expectation for a $200-300 frame and fork.
I would buy another one if I was looking to build a cheap bike without hesitation.