I threw pretty much everything in mine that CGW has, so I'm probably not the right person to ask.
Mine needed breaking in before it would run with a lighter recoil spring. One thing to do is remove and reinstall the OEM guide rod screw with some blue loctite. Otherwise, it will come lose and possibly lock the slide.
Aside from the anti-rotation kit, I think the CGW striker is worthwhile. Also consider the 10150 T-Block as the OEM part is plastic. Other than that, I'd just shoot it and know that CGW has parts to remedy any potential issue.