It’s tweaked a bit for weird personal left pinkie issues, I just prefer comma/period on the outside thumb keys and wanted a 10-key block for numbers rather than the stupid top number row.
Been using it for a few months; I’d say it’s roughly on par with the other popular modern layouts like Colemak or Workman. I quite like having some of the punctuation on the inside keys rather than outside.
I added the direction key block on the left that I’m really happy with (inspired by WASD in games, everything in an intuitive direction matching what it does, took no time to pick up).
The extra non-shifted 0, 1 and 2 in the main layer is handy for programming and because I needed @ and ! somewhere.
The mirrored set of bracket keys (and slashes) that coexist with the numpad is super handy.
Backspace on the left felt intuitive since the key is in the same direction it moves the cursor. Space and tab feel closely related, so grouping together feels intuitive.
The same general concept could be easily adapted to QWERTY or whatever other layout.