https://m.youtube.com/watch?v=3aokf0EDiJ4&t=6m27sI've been following Tour Divide for the past year. Basically the most competitive runners use SRAM eagle. and basically they have constant issues.
apart from consuming batteries like a 90s camcorders, and having to keep them constantly topped up, they die suddenly, batteries die to cold, to heat, to moisture, chargers die, shifters die. And so on.
BUT, riders keep on using them because they can install additional triggers on aerobars and they are not so tiring on the hands.