A comment above mentions that the benefits of an ortho board are not worth the learning curve of typing on one. Would you mind addressing the benefits you've found as somebody who is endorsing them?
The benefits were obvious immediately, even while not touch-typing yet. Every key is assigned to a finger without ambiguity. Except for some shortcut combinations, but even then it feels clear.
You use your pinky more which I think is good (I also play the guitar).
The number one advantage is that my hand is never lost anymore. With staggered, every other word or command makes my hand "float" somewhere away from the "home row/keys", with a subsequent mistype or look-down. This does not happen anymore.