I used to climb on the quantum techs, which are the same shaft as the north machine. I’ve used the north machines on a few pitches. Still the sweetest swinging tool I’ve used (I’m picky so I’ve owned about 7 pairs of tools over the last 8 years. Currently settling on the Petzl family).
I’m also psyched on the change to the pommel of the north machine, slightly shrunken which allows more room for fat gloves and plunges better while still providing a good amount of support. And the new “vario” hammer and adze seem like an improvement to get the weight closer to the front of the pick.
In short, especially for pure ice climbing and alpine climbing, I recommend the north machine to everyone who asks.
I can’t say much about the tech machine, even with thin gloves on I can barely get my hand in that handle.