Ordered on Monday, received Wednesday, polished windshield Thursday. Done!
Glass looks like new, even glossy like new, had very bad marks in wiper path.
Took a few hours of elbow grease but the results are fantastic.
I tried using a palm DA sander with hook it pad but that didn't work as good as cordless drill.
I found I could put more buffing pressure with the drill, but was harder to steady it.
Very happy with results!