I've got one, and haven't missed the saddle horn. I just got a road bike a couple of months ago, am using the seat it came with, and am pretty happy with it.
But for a year before that, I rode a Raleigh SC30 - a low end sports comfort model. I never got used to the seat that one came with, and replaced it with the Hobson seat. It took two or three adjustments, but once I got it right, I didn't experience any numbness at all on my usual 25-mile route.