JohnJ80

I’ve had both. In fact, I had an Ultegra Di2 bike and I replaced it with eTap becasuse:

1. The two paddles vs one paddle for eTap are much harder to use with gloves in cold weather (I live in Minnesota).
2. The installation is much cleaner with only cables for brakes.
3. Disassembling the bike for travel is much cleaner - you just unbold the RD, no need to worry about or protect the cable.
4. No wires in the frame. No wires period.
5. Bluetooth connection is much easier and ANT+ Connection seems to work better.

At this point where there are rumors that Shimano is going wireless too, I think it would be kind of crazy to go for a wired bike.

J.