My current project build has Etap, and my previous bike had Di2, and both are lovely. That said, I have been thinking if either justifies the cost and extra weight. I’m starting to think that a really well-adjusted and maintained top end mechanical system (Dura Ace, Record) works pretty much as well…

This thread is specifically Di2 (with several mentions of Etap) and has lots of great comments: Is di2 worth the investment?

Electronic gears - yay or nay? - #3 by mcneese.chad - Equipment

Topic		Replies	Views	Activity
Some observations after a couple of months of bike testing/building Equipment	4	436	October 19, 2020
Dura Ace mechanical or Ultegra Di2? Equipment	41	12175	July 27, 2020
Going Di2 or getting a new bike? Equipment	18	10544	August 12, 2020
Is di2 worth the investment? Equipment	236	42320	August 14, 2021
For those of you running electronic groupsets, what's the benefit? Equipment	51	9626	March 27, 2019