My early production (SN A15XX) CZ-97 came out of the box shooting every bit as accurately as the Big Name custom 1911 I paid 3X the money and waited almost seven months for. Perhaps a side-by-side from a Ransom rest would alter that a bit, but from my hands it's a virtual toss-up.
I would dispute the claim that CZ uses castings in this pistol. The frame, slide and most of the fire control parts are machined from forgings or billet. There are no castings or MIM parts anywhere in mine, nor have I found such in any CZ 75, 85, or 97 that I've owned or examined.
The polymer finish is an electrostatic powder coat applied over a phosphate (Think: Parkerizing) base. This type of finish has been pretty much the standard for military/police issue weapons for many years now in most of the world, and it is both tough and highly protective. Aesthetics aside, it is an extremely practical finish for arms which may be subjected to hard use under harsh conditions.
Many mil-spec handguns were designed to function around RN FMJ ball. I'm old enough to remember when it was a rare 1911 or BHP that'd run on anything else without some work. As was mentioned might be the case in the manual that came with my 97, there were some feeding issues with some types of JHP (depending a lot on OAL and profile) and especially SWC's when I got it.
These have since been addressed with changes to the feed ramp configuration by CZ-USA, according to posters on the CZ Forum. Mine were taken care of when I sent it off to Neil Keller at Kustom Ballistics for the installation of an EAA ambi thumb safety (I'm a southpaw and CZ doesn't offer an ambi option for the 97) and "duty" level tuning. It functions flawlessly now with my standard 200 gr. lead SWC practice load and every type of factory JHP that I've tried so far. From what I understand, CZ-USA will address any feeding issues one might encounter under warranty for original purchasers.
If you compare a CZ-97 side-by-side with other "service" side arms like a full-sized 1911, a 3rd gen S&W .45, Beretta 92, CZ-75/Tanfoglio, etc. you'll immediately see that the major dimensions are very closely comparable. The differences are relatively minor and mainly due to the additional length of the .45 ACP cartridge compared to the 9x19. Width wise, the grips, slide, etc. are very close. Subjectively, some folks may find the slightly longer "reach" to the DA trigger not to their liking. Personally, it helps my relatively long fingers get a more consistent placement for both DA and SA firing.
IMO, the CZ-97B is one of the very best bargains out there in a full-sized .45 "service" pistol. If the ergos suit you, you'll be amazed at how much practical value you get for your money.