I have the HD LED headlamp on my 2012 SG and love how it looks on the bike. Along with the Visor Style Headlamp Trim Ring I installed at the same time. But due to receiving delivery of the new SG at the end of the riding season up here in NH, and only getting the LED headlamp installed the morning I took it down to put into winter storage, I can only comment on the looks at this point. Well that and the cost.
As far as the cost goes, you can save $95.00 if you purchase it online from one of the many dealers that offer a 20% discount. Which is what I did. But it is still $430.00, even with the discount and free delivery.
But installation is simple. Just unplug the stock CVO headlamp, remove the special harness needed for the CVO headlamp, and connect up the new LED headlamp. The mounting hardware that comes with the LED headlamp is the same as the hardware that mounts the stock CVO headlamp so you do not need to worry about changing that. It's just a simple headlamp change. Of course this does not include the alignment, which seems just as simple, but I have yet to do.