I bought this sharpener so long ago I literally can't remember when I bought it. I've had it for probably 7 or 8 years and use the stone on a weekly basis for the kitchen and pocket knives and in the time I've had them it was time to replace the rib plate on my Worksharp sharpener that I've had for 2 years years and have used a lot less. Just rinse under water before each use and this bad boy has never let me down. Just add one to my wishlist to buy in case I need it and they stop making these things. I'm really excited about what you get for the money. If you are looking for a stone for your home for weekly use, please feel free to buy it, it's worth it.