I prefer Feibings products to Kiwi because they seem to be made from natural sources moreso than the thin petroleum route.  In fact, my dog once ate a whole tub of Feibings mink oil and didn't even get very sick.  I'm pretty sure almost every other type of mink oil sold would have killed her.  I use this mink oil to rub into leather products I make before sending them out the door.  And I use it to make old leather bags more flexible and less likely to break or tear.  The smell isn't bad because it doesn't smell like fuel oil.  If you're looking to protect your boots, I would recommend Feibing's Snow Proof.  It's almost like a soft puck of beeswax that'll really help to waterproof leather better than this mink oil will.  My leather products that are rubbed in mink oil still take water into themselves.  However, spotting once dry is minimized.