The default keyboard layout for Ion is good for new users, but is not very good for experienced users. Many of the functions for it are defaultly assigned to the "F1" - "F12" keys which can be tedious to get to for commonly used functions like opening a new terminal.
So, I made my own layout. It focuses on ease-of-use the things I deem most basic and minimal finger travel. It also uses a left-handed grid for navigating between up to 10 workspaces.
Enough dialogue, check it out:
I like blueish UIs that aren't too large or overwhelming. This is a modified version of the default cleansteel look.