The only people who dis electronic shifting are those who can't afford it IMO. There's not really any downsides (battery charging takes nowhere near the effort of cable maintenance) and plenty of benefits.

Really you should just ask yourself if the benefits are worth the added cost. For some that's a no and is understandable. If you can afford it I'd go for it IMO (although I'd wait until the new Dura Ace Di2 comes out in a few months, although that's yet another added cost).