I noticed that when I first placed it on my guitar, the holes didn't align, so I had to drill a few small holes, no big deal (one hole was still noticeable with another pickguard) but the main issue was, it was to noisy, the shielding on the back wasn't very good, I could've fixed it myself, but I only bought it for experiments.
Other than that, its just a pickguard and does its job.