In traffic it is invaluable. I am use to using my helmet mirror but this easier and safer as it is hard to see the road and use the helmet mirror
Daily and training rides, once you get it set up....it's sweet. DI2 functions are wonderful, I have downloaded two different centuries...great stuff Garmin!
Would have given it a 5 star review if it didn't have so much information that I don't need. Disabling windows so to be able just to use the main data I use!
