Super minimal finger travel. I have a 34-key layout personally, and while I give up the F-keys, everything else is not very difficult to access and I really love how little my fingers move.
If it was available earlier (and a bit cheaper) I'd have almost certainly bought the 360 and I'd probably be happier with it - I think I need a bit more width and a bit more tenting... but the Advantage2 + the Corne has completely convinced me that curved bowls are massively better than flat and I have almost no interest in spending time on flat unless strictly necessary. Ortho and stagger when split are rather clearly the correct choice, but flat just feels wrong and uncomfortable in a way that the Advantage2 never did (though it absolutely felt weird for a while when learning it).