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Well I wouldn't so I can't say for sure but could be handy for some applications.
Risers on a road bike? So you don't have to switch to Sram or find the hens teeth veloce flat bar shifters etc.
Just want to have electric shifting but have an old groupset?
Can't see it being very handy on drop bars but for tourers and flat bar bikes it could be useful.
It also has that semi auto feature so you can start in the little ring up the cassette and work your way through the full range of gears front and back with just one button.
Its for use with other standard derailleurs...