I also have the Belgian linen square. It's my only white square for non-black tie situations (I have a Drakes silk textured square for black tie). I use it once a week and just use the stuff and go method, so I can't speak to the tv-foldability.
But, it's a very nice linen, a little stiffer than the others I have. I have other linen squares in different colors from other makers. Hober does a relatively tight hand rolling of the edges.