The looks, thats really all it has over other knobs.
Weaknesses:
Nothing much. If you have some spare change like I did then buy it.
Conclusion:
It does what it's supposed to, look good on your gun and allow you to adjust the cocking pressure of the pneumatic reg. If you dont like how it looks, buy a different knob. It's just a pretty looking screw.
I have used the other generic rock nobs and they don't look as good but do the same thing. you can adjust your rock with out tools
Marker Setup:
I currently use a limited edition Prediator Autococker with a paintball mania 68 4500 tank 12in OTP G-1 barrel a benchmark 45 frame and the rest is all stock.
Strengths:
It is simple and easy to use and it looks good too. Instilation is a sinch just unscrew the out and screw in the new.
Weaknesses:
You can hit your adjustor knob on a bunker or your friend can twist it by accident and you can wind up with a barrel stuffed with paint.
Conclusion:
It is good and easy to use not a whole lot to it though works as well as any other.