My new er9 on my alloy bike.
Was about to sell that bike and buy a "fancier" one instead. But all i needed was elecronic shifting.
The RD cable solution is ugly for now since i cant internally route it. Thought about drilling a hole into the chainstay but i'd rather not.

I love and hate it. Hate because now i have to turn my TT bike into electronic shifting with a frankenstein sram force / shimano setup. After my first ride on the blue bike I'm totally sold on electronic.