For all the moans about how expensive and unreliable modern technology is, the reverse is actually true. Older cars were easier to work on, but they needed constant adjustment to keep running and they did not last anywhere near as long. At 60k most engines were on their last legs whereas now they are barely run in, clutches would rarely go past 40,000 miles and Saturdays were spent under the bonnet either fiddling with or replacing something. Most families were on first name terms with the TV repair man and bicycles were not the super reliable machines which lasted for ever that some people would have you believe.
When hi tech stuff breaks it does cost more to fix or replace, but with a few exceptions most things last longer and performs at their optimum rate for nearly all of their life. The "Good old days" are seen through heavily rose tinted specs, when in truth they were not all that great after all. Electronic shifting? Five years on it will be so common and more affordable that most people won't question having it on a bike - with the exception of those who think technology peaked with friction shifters and the five speed block, and as remainers constantly say about Brexiteers, they will be dying off soon anyway.
Never tried it in full synchro, don't see much point, but use it in semi-synchro 100% of the time 
