Ha! I know what you mean, but it didn't happen with me. I borrowed my sister in law's new Domane with Di2, and I enjoyed it, but it wasn't a game changer for me. Sure, it's superior in every way except for cost. My guess is that it will prove to be more reliable than mechanically controlled shifting, but the failure modes can be worse, as has been pointed out. Maybe the next generation will have an alternate shifting mode for the eventuality of a dead battery.

[MENTION=5802]sch[/MENTION], is it a LiIon battery? Normally they last three years, but 28 months isn't unheard of. Stuff happens. One of the biggest factors in their ability to hold a charge is age, not whether you charge them fully.