I replaced the stock bridge on my Mustang PJ bass, which is very light resulting in neck dive. Using a heavy bridge helped to fix that.
This bridge is slightly smaller than both BadAss-II and Hipshot's KickAss, resulting in slightly shorter intonation length. This was something I was afraid of because my Mustang being short-scale required longer intonation length on E-string; but it intonated well.
Being somewhat smaller, I think it looks better, thus the main reason I chose this over BA-II or Hipshot KA.
It's slightly heavier than both BA-II and KA.
It comes with fixed 19mm string spacing.
One thing I did not like is that the intonation screws are recessed in very deep and the hole is quite narrow. My usual Philips-head driver did not fit in there, I had to use a smaller driver.
It came with height adjustment allen-key, but screws are not included. If you're replacing the existing bridge no problem, but if you're building a bass from scratch you'll need to buy screws separately.
All in all, I'm happy with my purchase.