We first heard about Tea Qua 3 years ago. So they have been around for a while - longer than varnish or Cetol will last. It's unfortunate that we can only rely on Tea Qua's web site for testimonials on the product because if what they claim is true, this product blows any other finishng out of the water (pun intended) From reading the label and product information on their web site it sounds like it acts more like a stain, penetrating the wood, rather than a paint or varnish which sits on the surface.
I agree with the FOX, I do not like the look of Cetol and refuse, for now, to use it and if Tea Qua works like they say it does, I won't ever have to use it.
Fox, check out the website and if you want wait a year for my report on my experience. My boat will be in the Southern U.S. - Fl & Ga - for that time, so it will be a fairly good test.