I've been using it exclusively for about 5 years. I like it. Like others have said, it's a great lube.
With that being said, it's a very specialized product. Don't expect it to make cleaning your firearms any easier and don't think it is a apply-once-and-done deal.
It will burn off in areas with high heat— so you will still get carbon deposits inside the BCG. Also, it isn't a knockout corrosion inhibitor. Homebrew saltwater tests (YouTube ) placed it somewhere in the middle of the pack of anti-rust treatments. It offers some protection though and I haven't experienced any rust issues.
As I said, it is very specialized, but it does that one thing VERY well— reduce friction.
Some other things to consider:
-it is a light grease about the consistency of lotion. You can't just hose it on like CLP. It needs to be deliberately applied as a thin coating.
-it has never failed me, to include temperatures ranging from 9° – 90°F (MN weather)
-in the container, it will separate into a thick-ish liquid and the white compound if you leave it sit around long enough. Shake before using.
-a little goes a long way. "A dab'll do ya." —AVE
But that's just my opinion.