I've read plenty of posts that have placed Thiers-Issard razors at the top of guys' preferred lists (at least when compared with those currently or recently produced).

Are TI razors really that noticably better than the rest of the mass production razors? (I suspect that the custom one-off razors would be very hard to beat.) How do they compare to the best vintage ones made in the "golden age" of straight razors?

-Ivan