Both the P-01 and PCR have really lousy factory sights; I had mine replaced at CZ Custom. Curiously, my P-06 came with great Meprolight sights and was perfect out of the box, and is the gem of the collection. Note, however, that for whatever reason unbeknownst to this writer, some number of P-01 apparently ship with Meprolight sights.
FWIW, the PCR has additional features, but the P-01 (and P-06) has a rail that, even if you never use it, adds weight up front and thus slightly reduces muzzle flip. I don't shoot competition, but I've heard competitive shooters say that they like the extra weight, which is why the SP-01 (basically, a P-01 with a 1" longer barrel) is the preferred pistol of many top competitors (as opposed to the non-railed plain 75).