After Zero diagnosed and fixed my ECO mode shutdown problem, on my 2012 DS, I immediately went to work on the rear wheel to 17" modification & chain drive, so I hadn't ridden it to check out the repair. I just got it back together last night and rode to a vintage bike meet today (I know it isn't vintage). I rode it in ECO mode and no problems, so the repair was good.
I like my 2010 DS but I'm even happier with the 2012 DS! Even though it's 20 pounds heavier than the 2010 it seems to handle even better (if that's possible) and I don't notice the additional weight. It got a lot of attention at the monthly bike meet. People would ask; "how quiet is it"? My answer is; "the new dual sport knobbies I put on it make the loudest sound I hear".