Their description is really vague, and when I ordered my kit I honestly didn’t understand what problems they tried to solve, so naturally I wanted to test it
The most universal improvement that people will likely experience is better flow on the left ramp. It’s not going to improve shots that are offset center and would normally clunk, but clean shots are butter smooth up the ramp.
Another nice optional upgrade is a 3D-printed bracket for anyone who has a left orbit guide that’s too steep. It will hold the guide in the intended position. However, do NOT install the bracket if your guide is already fine. I wish that was in the instructions.
There’s a washer for the right ramp that requires a fair amount of disassembly to install and, from what I can tell, hasn’t really improved problems with the ball hopping off the metal tongue into the air ball protector and rejecting clean shots. This part of the kit may or may not be worth the trouble.
There’s also a metal bracket to install behind the Razorcrest target. I’m still unsure what it’s supposed to solve. It did make the target heavier and feel more meaty and satisfying to hit. However, it was surprisingly hard to install, at least for me and my non-dexterous fingers. And the bracket fell off, along with the screw and nut, after a few hundred plays. I tightened that thing down hard, but I suspect the ball kept hitting the back side on its way down and would knock the bracket left and right, which probably loosened the nut over time.
Ultimately, since I didn’t see a problem this piece was addressing, and it was introducing its own issues, I didn’t re-install it.
Lastly, there’s some foam backing for stand up targets. I can see how they could theoretically improve their feel, but I haven’t installed them yet.
YMMV.