Solid review Sir. I just saw one of these on the local classifieds for $100 and had to see if it's worth bothering with. Looks like a solid product and I appreciate you sharing.
You didn't seem to have an issue with the ramp. But other reviews have accidentally not addressed the ramp. If you don't stretch out the mat near the ramp, the ball will hit the ramp almost imperceptibly. It depends on how much lag you leave. Must stretch out the mat to avoid little bumps. Also, comment below about "drift around the hole" is accurate. Ball tends to go left or right near the hole.