I bought mine with 8400+ miles, of course with the built in error and the new error since I corrected the speed these aren't exact numbers, but I just hit 15,000 miles today. I got it in the middle of November and started riding in December, I am pretty much on it every day, including commuting to work. As you can see in my signature I have modified it slightly. I am happy with all of my choices.
Not sure what the OEM windscreen was designed for but it was the first thing gone.
2013 DL650 Farkles: Cal Sci windscreen, Enduro Guardian skid plate and radiator guard, Bark Busters and Storm guards, SpeedoDRD, Richland Ricks fork brace, voltmeter, cyclops LED headlights, Stebel air horn, 3500LM LED driving lights. Eastern Beaver PC8, Rostra Cruise Control, Rox risers and brake line extensions.