This layout is much more natural than most smaller orthos.

There's very little to "learn", or "remember" on my layout, even for someone coming straight from a non-programmable 100% board.
With no modifiers in play, everything is right where you'd expect it, on a standard staggered 65% board, except that the ? key is moved over one key to the right, piggy-backed on top of the Right Shift key.

The only things you need to learn/remember are the two layer modifiers.
Black Fn is exactly like moving your right hand to the arrow keys, except it adds extra keys around the arrows.
That keeps you from having to "move your hand" yet again, to do things like delete the text you just selected.
The left blank 1.5 key next to that is exactly like moving your hand to the numpad on an 1800 or 100%, down to having the vertical 2u NumEnter.