Shooting my battered factory p-01 with ages of abuse on it since '02 manufacture and police use.... I have to say the front is horrible for accurate poi, but the rear isn't too horrible for tactical use. The faded dark grey dots on the faded dark metal sight makes for an easy way to pick up the front. Now my eyes are not perfect but I don't wear prescriptions. Either way I don't normally keep any factory sights unless they're actually something great. I always get rid of them... I've got good use out of tfos, trijicons, mepros, and some custom stuff like Novaks for my 1911s and some Dawsons and heinies as well. It's all for which purpose you need and what applications are available without cutting the slide. If anyone has had good sights on their cz75, it would be the straight 8s I've handled on a couple of custom shop guns. They're real nice.