I use my RSK every day...I like to keep it pretty sharp. Havent gotten it razor sharp yet, but, its still plenty sharp to cut through anything from packing tape, plastic, string, to cutting fruit in half on a daily basis. I usually sharpen it once a month or so-nothing fancy, just use a standard diamond sharpener. The sharper the knife, the less apt you are to hurt yourself (as long as you keep clear of the business end).