I have them on my EG Classic. I like them real well. They let me see as much as I can with the stem mirrors on the wife's Heritage, and they are a much cleaner look.
I just installed some on my ultra two days ago. I think they give you alot better side vision, although I seem to look at about three knuckles on each hand. I followed the template exactly but I wish I had moved them up and out a bit farther. I didn't really second guess the template at the time because I figured the Moco in their infinite wisdom would have the mirrors in the perfect spot. Maybe somebody else can shed some light on the perfect location, but otherwise they work pretty good and look very cool.
I installed a pair of the very small "fisheyes" on my mirrors. It really eliminated all the blind spots and doesn't take away from the standard mirror observation.
I have a set that I bought awhile ago, I am just too chicken to drill holes into my fairings. I plan on doing it before Sturgis though, I was thinking about getting the Hogtunes and doing it all at once.
I ABSOLUTELY LOVE MINE....of course I couldn't see anything but my shoulders out of the stock mirrors. I don't know if any handlebar mount mirrors would have a view wide enough to see around my big ***.