I think the logitech Ergo is a better shape, because it's like a vertical mouse..
But I can't tell if this one can be tented as well...
Overall..
What will be interesting is if logitech will license out their new Hero sensor to other producers..
I'd expect all other wireless logitech product lines to use that sensor.
It's really a game changer..
500 hrs on 2 double AA batteries @ 1000hz report rate.. with tracking speeds as good as the Pixart 3366/3360
Nothing on the market can beat that.
I don't think the current logitech ergo has the hero sensor, but I'm sure the next ones will.