What struck me about the one star review video here is that there is no footage of him trying to pull those same nails out with a tire iron or a cat's paw. Extremely rusty nails that have been there for a very long time to fight and fight and fight, even with a crowbar, of course she can't get that out! If it were possible I would be very worried about safety! But wood doesn't have to be new softwood or have rustproof nails to work with! It has an amazing pull and honestly I'm just surprised the nails don't fly back into your face! Some of the more difficult nails take a few tries, but I usually pull hundreds of rusty nails out of a hundred-year-old granary, usually an old Douglas fir. Of course, if the rust is so thick that the head could break, you still need another tool! From someone who makes a living from it and has been dreaming of such a tool for years, I feel this product could be the best way to realize what such a concept could be! I'm really very glad I bought it, it not only saves me time but also saves my elbows, wrists and arms from total exhaustion. In addition, the wooden part WILL NOT BE DAMAGED. And of course when I'm working I have my favorite pair of nail pullers, a hammer and a rotary hammer by my side, such a tool can't be perfect. And while I've never seen or felt a nail fly towards me, it's definitely possible, so goggles are a must. The tool is very easy to learn, it's very intuitive, it's lightweight and now it just has to stand the test of time! I will update the video soon!