I bought this pickup as a replacement for a stock pickup in a very low-end guitar to give it some character.  It is a great improvement, and the pickup really shines when used when the amp has some crunch on it.  The pickup is pretty high-output compared to everything else on my other guitars, so it's a bit difficult to rein in the sound and clean it up, but, as I said, it does crunch/gainy tones very well, and it's very reasonably-priced.  The only reason why this pickup doesn't get 5 stars from me is simply because there are better pickups on the market--much pricier pickups, to be fair (Lundgren, BKP, etc), but I'd have to reserve a 5-star rating for them.