There's nothing I can say about the lens that hasn't already been said: handy for a great number of situations and a must-have for most professionals. That you already know.
What you might NOT know is that this one is super sharp, has no chromatic aberration, and is sharp even on the R7, where you get a 112-320 f/4. So it's GREAT paired with the R7 (or any of the other APS-C bodies) for outdoor sports and some wildlife photography!
If you've got the money for it then this is the one to have.
I would recommend this to a friend!
Written by a customer while visiting usa.canon.com