do you feel that it’s actually that much more efficient (like their gh page says) than, say dvorak, or it is hard/too early to tell?

Hard to say… I’m fairly sold on it because it uses both real world hand distance measurements, and a genetic algorithm to not only find the best keyboard layout possible, but to score existing ones. Its def more comfortable than dvorak or qwerty, but I also haven’t tried colemak-dh or some of the other ones ppl like a lot.

The main thing I’ve learned is that while these alternate layouts don’t make you type faster, they do make things more comfortable.