Let me start by saying this dust shroud is a game-changer for concrete grinding... when it works. The PVC/nylon construction feels sturdy, and the brush ring design should seal dust effectively. I used it while refinishing my garage floor, and the difference in airborne dust was night-and-day compared to freehand grinding.

The good: The multiple adapters included actually fit my Makita grinder perfectly (though some users report compatibility issues). When paired with a shop vac, it captured about 70% of the dust during edge grinding. The sliding hatch for precision work is genius - a feature I didn't know I needed until trying it.

The frustrating: That vacuum port is a headache! Like other reviewers, I struggled with the metric-sized connection until finding the Bosch VAC020 adapter (pro tip: keep this in your cart). Also, the cam lever lock might as well be decorative - I had to permanently tighten mine with a wrench to prevent wobbling.

Real-talk verdict: For $60, it's decent if you're willing to MacGyver some fixes. Works best with:
- Grinding wheels under 1.6" height
- The exact right grinder model
- Aftermarket vacuum adapters
If you need flawless dust containment for critical jobs, you might need to splurge on that $120 Dustless Technologies alternative.