Overall, I must say that the tool works, and sets an edge well. You do, however, need to be a little careful using it. First, as others have said, it can be a little confusing which way to insert the file for base edge tuning. Not a huge deal, just look over the illustration on the package and it is not too tough to figure out. Just make sure the file is not inserted from the wrong side or who knows what angle you are setting. The file also fits a little loosely in the slot for base edge tuning. It can move out of position or even fall out while using the tool, also not the best way to set a reliable edge angle. I started keeping a finger on the file to hold it in place, while making sure not to press too hard and change the file angle. I also thought the file and ski edge were starting to wear the plastic of the body of the tool after only a few uses. So don't really lean on it and wear it out too fast. All that considered though, I did get a nice edge out of the tool once I got things working, and am not sorry I bought it. Not that bad for the money, if a one degree angle will work for you.
