Fail Zero BCG

Has anyone had any experience running the Fail Zero BCG . If so, any issues? positive or negative aspects of this BCG. Thanks in advance for your help

I have a FZ finished carrier, and I really don’t like it over a Mil spec finished carrier. I like a finish that holds Froglube and stays wet. I ran it for a while, and rotated it out of the gun it was in.

https://www.m4carbine.net/showthread.php?45406-FailZero-BCG-Review

https://www.m4carbine.net/showthread.php?33780-Fail-Zero-BCG

This is my experience with them, exactly. I didn’t have any problems with the BCG, but I didn’t really see any improvements either.