the recoil is pretty snappy in my experiences with that model. But i do love the G23. as listed above but if i were you go shoot one and decide then before buying one.
I have a 27 and I love it. You do get used to the recoil after awhile
I've equipped mine with a crimson trace laser guard that totally makes for
an unfair fight.
I sold my 27 and opted for a 23. The 23 is just a tad larger, but is easier to control the recoil. It is no harder to conceal than the 27, so for me it's a no brainer. I am much happier with the 23.
I have the 17, 23, and 27 and the 27 is by far my favorite. I shoot the best with it. I do not like the extended magazine. I find that tucking your pinky under the magazine provides a great deal of support.