I have both mechanical and electronic shifting bikes - an Ultegra 6800 bike and a bike with a mix of DA and Ultegra Di2. Both are nice, but the Di2 bike is the one I want to ride the most. In the thousands of miles I've ridden it, I've never had a bad shift and never had to trim the RD. Every shift is perfect. I'm glad I did it and I'll probably not have another mechanical bike in the future.

It's a true statement that if you don't think you can't afford it, then you shouldn't try it. If you try it, you'll want it.

J.