The 97 is the perfect .45 to me. Ergonomics similar to the 75 but the grip depth is different so the reach to the trigger is different. It's a large handgun. But, with 185 gr bullets and whatever powder Atlanta Arms uses in their JHP match ammo, it is so pleasant to shoot. Recoil impulse is slower and lighter than on a 75B with 130 PF 9mm ammo. The only thing I had to do to mine was trim a little material off the slide lock nubbin to avoid bullet nose interference for the JHP rounds I shoot in it. The interference will push the round to the right a little and it will not feel smooth as it is redirected by the ramp in to the chamber.
As far as the hammer sticking experience that delphidoc mentioned, I've heard of that happening on the 97 (as well as other steel frame CZ's). I don't remember the details, but I think some of the frame slots were either a little narrow or had some burrs on them. Apparently the slot is tapered so that the hammer position when in the fully cocked position has no side wobble, so any change in the dimensions on the hammer or slot will result in just a little tighter fit than needed. The solution is to stone the slot first and then the hammer, if needed, and install the hammer without the spring and see if the interference is gone. You can feel the interference by removing the hammer spring and pulling the trigger with the slide off and moving the hammer over its full travel. It will tighten up as it reaches the cocked position and loosen as it approaches the firing pin position. I don't think this is hard to fix at all. It would tick me off a little to have to do it on a new pistol, however. Perhaps check for a hammer slot that is too narrow when you put in your race hammer, assuming you haven't already installed the parts.
Enjoy your new 97. It's the one pistol that has gotten a lot of 1911 aficianados interested in CZs.
Joe