It's very well made, and you can tell the D3O will disperse energy. It's unlike any other foam on the market. The hard shell is good, but it doesn't cover as well as the S7. The S7 overlaps the plates where it counts most, especially near the collar bone. It's very low profile, especially in the chest area. It light, but still substantial. It's a bit more difficult to put on compared to my S7 because the G-hooks stay tucked in the loops, so it's a bit like putting on a shirt. Maybe it would be good to pull one of the G-hooks out of the loop so it's easier. The bottom straps do get twisted, and the foam that wraps around the waist must be pulled back when you engage the G-hooks. The stock harness is good, so no reason to go aftermarket there, though I do love the UmpLife harness which is what I had on my S7.
Overall, this is a CP for high level baseball, and I have full confidence that it will protect me where I need it. I still believe the S7 is the most protective CP ever made, though it's very bulky in its original form. My mods made it much more low profile without sacrificing much protection. I plan to wear the Enduro all off season, including 2 plates at the Area Code Games coming up next week. That showcase features many pitchers throwing mid-90s, if not faster. The problem is that they're throwing to catchers that have never caught them so it can be a smoke fest.