I've carried the G27 for years. If you practice, you don't lose any shootablilty IMHO.
After trying out a friends G26 though, my rate of accurate fire with the 9 was faster.
If you already have a G23, get a 27 and use the 23 mags for reloads. If you have a G19, get a 26.
^^^^^^^^^^^^^^^^^
I say what he say.

I'm just a few months short of ten years CC-ing a G27 (about 75% vs 25% with my Commander 1911, in winter).
I've carried mine IWB, OWB, front pants pocket, and even carried in the bib pocket of a pair of Liberty overalls while I was in a wheelchair.
I have no complaints..... (I shouldn't, since I trust my life on it, eh?).
Very concealable, even in an OWB SERPA under a t-shirt in summer.
As to shootability, if you are a regular shooter, and have been shooting properly (ie: stance, grip, sight picture, etc) then the transition should be a non-issue. A new shooter might have to adjust.
I've never personally had issue with the G27's recoil.
YMMV