That's nice. But it is a heavier frame. And, as stated, for any applications save fixed gear/single speed, or internal hubs, horizontal dropouts are, well, dumb.

I have horizontal dropouts on my "vintage" ride. I hate them. I merely put up with them because they're part of the charm of an older bike.

And I run discs, which don't mix with horizontal dropouts. I moved to discs over cantilevers a while back, partly for the stopping power, partly just 'cuz they're cool, and mostly to keep my hearing.

I had my cantilevers set up right, toe'd correctly, got the nicest/latest/greatest kool-stop pads...and they screamed like banshees. Well, at least the front one did.