I've got two of them. After deciding that I needed to ditch the Bontrager saddle that came with my bike, I took a chance on a Toupe. The thing is alarming to look at... it looks like it's from outer space, and feels like a paper airplane when you pick it up. Plus you have to actually have the distance between your sit-bones measured to find the right size, which is a little weird. But I gave it a try, and I'm exceptionally glad that I did.
The saddle is hard, and when you look at it you can't really believe that it would be comfortable -- bearable, even -- to sit on for hours. But looks are deceiving in this instance. A key aspect of the saddle design, for me at least, is that the structure is so thin that it flexes perceptibly with each pedal stroke. For me, this flexing more than compensates for the hardness, effectively replacing any padding that the saddle might have. My experience is that you sit down on it at the start of a ride, think (while sitting still) "that's a pretty hard saddle"... and that's the last thought you give to it.
As I said, I have two of them. After putting in a couple thousand miles on the Toupe on my road bike, including several centuries, I also went out and got one for my trainer bike.
As with all saddle issues, it's a very personal thing, and your mileage may and probably will vary. But for what it's worth, I wouldn't put my butt on anything else.