Bought this as a replacement for a Squier P-Bass, and the difference in tone is absolutely awesome. I play hard rock, and the new bridge gave the bass a lot more bite, sustain and bass, without eliminating the oh-so familiar P-Bass mids.
I have only one minor gripe with this, and that is that the new bridge is quite a bit taller than the original, which meant that it was necessary to screw the bridge saddles almost all the way down. Had my fretboard been just a little lower, then the new bridge would have caused troubles with very high string clearance over the frets.
Apart from this, I would by it again in a heartbeat.