I give it 3 stars. Not because there is anything inherently wrong with the product, it's actually of very good quality! My problem with it is that the holes didn't line up perfectly as I expected them to. Some of the holes were off by 3-4 millimeters. This could be an issue with my guitar body so this might not be the case for you.
I bought the pickguard to turn my strat into an HSS configuration. My humbucker fit nicely in the slot but be aware of the humbucker screw holes on the sides. For some reason the pickguard comes with two holes above the humbucker, and one hole below it. I needed to drill a new hole in between the two small holes to properly mount my standard Seymour Duncan JB pickup.