I haven't had the Bladetech long enough to comment, but I have been using an Uncle Mikes for 13 years with my 9mm in various competitive shooting (lots of use). Other than the usual scratches and dings it still works and looks fine. Inside you can see the polishing where the metal rubs but it is nothing IMHO.
Bladetch is reportedly a couple notches above Uncle Mikes so I expect nothing less from this new one.
Happy Shootin'