Maybe it does make strings last longer, it's kind of hard to tell.  I don't know, but there's something about the competitor's FF product that I like better.

After applying this, it leaves quite a bit excess on the strings so of course you wipe off only the excess and leave a thin coating on the strings, as they recommend.  But not much seems to stay on.  I found myself re-applying it for each set, but with the FF I'd only do it before the first set, and only occasionally some nights again for the 4th set.  I even tried just putting a little on my fingers but that didn't work either.  However, it's quite good as a string cleaner, which I guess is it's intended use.  But the thought of using this AND FF seems like too much.  Maybe I'll just apply this once at each string change, and then use FF for gigs.

Definitiely a personal preference thing, but I'm going to go back to my beloved FF.
Maybe it does make strings last longer, it's kind of hard to tell. I don't know, but there's something about the competitor's FF product that I like better. After applying this, it leaves quite a bit excess on the strings so of course you wipe off only the excess and leave a thin coating on the strings, as they recommend. But not much seems to stay on. I found myself re-applying it for each set, but with the FF I'd only do it before the first set, and only occasionally some nights again for the 4th set. I even tried just putting a little on my fingers but that didn't work either. However, it's quite good as a string cleaner, which I guess is it's intended use. But the thought of using this AND FF seems like too much. Maybe I'll just apply this once at each string change, and then use FF for gigs. Definitiely a personal preference thing, but I'm going to go back to my beloved FF.