FlameytailThey have a significantly shorter actuation distance. I use the burnt orange and love them. I have also used the regular coppers and I prefer the heavier springs for speed switches, because it encourages me to release the key press sooner than a lighter spring does which just adds to the "speediness" of these switches for me. YMMV of course...
blakstealthI actually haven't ever used any standard browns (Cherry, Gateron, or otherwise) if you can believe it, but to me they definitely feel slightly more tactile than the Gateron Silent Browns I have, though not as quiet obviously.