Agree with these comments. I love my 188 R11. I like it best mounted forward of the rec line at +1.5 (I've only tried +1, rec line, and -1.).
In this category, I've owned:
190 Moment Bibby (12/13)
190 Moment Deathwish (17/18)
188 Praxis FRS (20/21)
191 Praxis Lhasa Pow
So, a few, but not a ton. R11 is so nimble (esp at +1.5), great and surfy in Cali cream ("powder"), confidence-inspiring in steeps, good for billy-goating, and fun on the groomers. It's an awesome soft-snow resort ripper.
I had some mounted with some Shifts. Hated the Shifts, so they are just mounted now with Pivots. May throw a CAST on there now that I've settled on my forward mount. If I had to go down to a one-ski quiver (ugh NOOOOO!), R11 would be it for sure.
One note: I snapped the tip on my first pair of R11s at the top of the metal insert layer. Ran directly into a rock. I was uninjured, ski was not. As a result, I would not say this as rock-solid built as my Moments have been. But overall, I think it skis better - it's a like a directional, slightly-lighter Bibby.