Hey Rod,
I was never one much for keyboard short cuts while on Sonar 8.5.3 & earlier, but they really do speed things up with X1 & X2.
I only use about a dozen, but now I use them all the time, and really like them.
Like 'C' for the big-ass Control Bar; 'M' to add markers; and 'D' to show & hide the Console View, & 'B' for the browser.
And I really like the option of docking plugs & other things into the Console just by drag & drop. Then they all show/hide together simply by pressing 'D'
Myself, any break from continual mouse clicks is more than welcome.
A simple key press is faster than moving the mouse up & over & aiming for that little tiny 'x' somewhere.
Hit a key once - hit it again - too easy!
The ability to undock things to other monitors is even more handy, since I use 3 monitors now.
As much as we all have a natural resistance to change once we get comfortable with something, I 'm really glad I've gone up to X1 & then X2.
And I think you'll feel the same way in a very short while.
Honestly speaking, within just a few days to a week, I had already learned my new way around X1 & X2.
In fact when I first installed them, I just cruised around first before doing any work, just clicking around, learning the ropes.
Once you're use to it, the work flow is definitely enhanced by the new layout.
Go for it!