I can type almost all day on my cute zsa voyager, but if I spend 3-4 hours on a regular keeb (like a regular non-split qwerty, or a laptop), I just hurt myself.
I guess that's why they call these ergonomic keyboards: they hurt your human body parts a lot less. :)
A few more years, and I'll be forced to use a vertical mouse and a tenting kit. 馃槒