And the RD doesn't have to take up as much slack since it's just 1x at the front. You can also shift it under full power. I think it'll shift happy under up to 1500w.
All the advantages of 1x but with the extra range of 2x and without the downsides of 2x
One downside is that you're a lot more limited in the wheels you can use.
Also once the shifting can be integrated as part of a electric groupset instead of having it's own separate satellite shifter that will make things a lot neater.
In Ridley it came plugged at the Di2 front shifter. It wasn't integrated as you couldn't see it in the shimano app but worked as a button. Anyone handy with electronics could do it.
Not sure if that's possible with SRAM or 12 speed shimano, possibly not
And the RD doesn't have to take up as much slack since it's just 1x at the front. You can also shift it under full power. I think it'll shift happy under up to 1500w.
All the advantages of 1x but with the extra range of 2x and without the downsides of 2x