This stuff is AWESOME! I just used it on several old saddles and they look and feel brand new now. I wish I would have had this years ago. No more stiff or cracked leather in my barn. Bonus: Even my hands feel smooth after cleaning tack.
Just got an older Bona Allen saddle with some age crazing/cracking. This stuff softened it up almost immediately, does not change saddle color, and smells great! Highly recommend for rehabing old leather.
I started using this product several years ago, any new tack that I have used it on has never molded and I am in a high humidity state. The older stuff that has had other products used on it still will mold sometimes but not as much. I refuse to use anything but this.