Excellent feel, Great performance, and awesome looks :)
I love the trigger over-travel adj. (WGP and DYE has it too though)
I've used the WGP and DYE frames, and the Sys X frame seems much smoother.
Weaknesses:
The most difficult thing is Re-Timing the gun after the installation. Have someone that knows what they are doing install it :)
Conclusion:
I think the system x trigger frame was a good purchase. The frame is extremely reliable and performs well.
I do recommend a good 3-way such as the "Bomb" to have the ability to reduce the trigger pull. The grips are included with the frame, and they aren't that bad.......i like them :)