Ok, range report incoming. I took my girlfriend to the range and we shot a 226, Glock 17, USP 9, XD, and my new (to me) SP-01 (in that order). I used to have a USP 9 and have shot the 226 and 17 many years ago. I was surprised at how different they were from my memory. The Sig wasn't as nice and the Glock wasn't as harsh as I remember. The USP had a comfortable, nostalgic feel for me. The XD just felt strange, and something was screwy since it had constant ejection issues. They all felt good in different ways, but nothing really stood out. Then we shot the SP-01 (with the Lok grips) and it was like the clouds parted and a ray of sunshine burst onto our lane.
It was seriously shocking how much nicer the SP-01 shot for both of us. Accuracy, comfort, perceived quality and recoil management were all significantly better with the CZ. My girlfriend consistently shot tight groups on only her second outing (we went shooting once about 4 years ago) and even successfully experimented with a little longer range and faster cadence. She definitively preferred the CZ and described the shooting experience as softer and more pleasant.
I was shocked at how little the muzzle moved on recoil and how quickly and accurately the sights re-aligned. I could observe the same thing watching my girlfriend shoot as the gun seemed to recoil back and slightly up with minimal muzzle flip. I don't know if there's serious debate about the effects of a lower bore axis, but the benefits seem obvious to me.
I'm ridiculously rusty as I haven't shot consistently for decades, so I'm not passing judgment on any of the other guns. Suffice to say that, for our preferences, I'm beyond thrilled with the SP-01! I'm looking forward to upgrading the trigger (down the road) and sights.