Some like them, some don,t.
I,ve never seen the need, If you can set up the bridge properly, you probably don,t need one.
Try making sure that the bridge saddles are flat/parallel to the bridge plate. Once you are happy with the adjustments, Try some blue loctite or clear nail polish(some even use wax) on all the screws including the bridge height adjustment screws. Shimming the neck pocket can also help.
If all these fail for you, then go the buzz stop or better still a Mastery Bridge(pricey though)
