I just installed a set in my bike. Night and day difference in the light output. Sides of the road are more visible, download is a huge improvement, I can actually see more than 15' in front of my fender. At the price point it just doesn't make sense to go with any other option.
I just put their H4 LED bulb on my Heritage! Great light, terrific customer service and very reasonable price.
I had put a full lamp replacement on my Dyna but I wanted to keep the 'classic' look of the Heritage lens.
I'm now waiting for the tail light bulb replacement from them.