This tool does what it claims to do. If you take into consideration its price and its being manual verse automatic, it does a very good job. I didn't find I needed to do the 'cut a 1/4" notch' and reposition the spacers as another reviewer suggested. It sounds like a very good idea though if needed. I did find that securely mounting it to a stable bench or welding table that is about waist high, plus placing a couple of wood slims between mounting base and the bottom side of the tool that fits into the mounting base really helps to make the tool stable and it doesn't move around while un-mounting/re-mounting a tire. You have enough things to do working with changing a tire without having to also do a balancing act with a moving target. Having the tool mounted at waist high provides you with the opportunity to use your upper body strength to an advantage. If you need more leverage on remounting the tire bead place a short piece of pipe as needed with a diameter just big enough to fit over the end of the tire bead mounting tool. Also having a good smooth end tip tire tool would be nice to have as needed. The smooth end is to reduce the chance of cutting the bead &/or inner tube. I purchased this tool at the local Northern Tool store.