They're very well made, quality materials, excellent fit and finish, and come incredibly sharp. As for effectiveness, well...their blades ARE weapons. They are intended as weapons, and designed as weapons, so I have not(and presumably never will) actually used any of them for their intended role, but I can tell you this-if for whatever weird reason I was going into some kinda situation where I thought I was gonna be fighting with a blade, I'd take my TFW ginunting. To give you an idea of my appreciation of their stuff, I own a ginunting, kambantuli, Visayan barong, kris #4, pira cotabato, and panabas(as well as a long staff, short staff, and the ironwood flat stick), and, well, I pretty much never spend more than $150 on a blade, even the idea of it rubs me the wrong way...but I had no trouble doing it for those, and plan to buy others in the future.
As for new finding reviews, where did you look? I've seen some on these forums before(they turned up when I googled specific models), and I know a few Youtube people have reviewed them, WeAllJuggleKnives has done several.