I rarely buy the first iteration of new stuff although my first carbon frame was in 1986. I greatly prefer electronic
I never believed the stories of better descending speeds due to disc brakes and although I have a love/hate relationship with my 2 month old disc brake equipped bike, I have to say that I did a Strava Segment PB on a weird segment that has a lot of very fast technical descents. I wasn't even trying. Or maybe the bike is more aero than my old rim braked Cervelo S3.