Originally Posted by
TexMac
I have two friends who have it. The downside they say is Di2 shifts faster than e tap. For the $$ difference i think i rather go with Di2.
I've heard they did that to extend batter life. And it's been suggested that they offer a firmware upgrade to reduce the time needed.
Both have their pros and cons, so pick the one that works best for you.
One of the things I like about eTap is the micro adjustments of the RD in 0.2mm intervals making fine tuning a breeze.