Hello, I am considering buying this knife, I have few questions: 1. Is it suitable for cutting and chopping? 2. How hard and durable is it? 3. Is it easy to sharpen? 4. Is it a purchase for years? https://www.kabar.com/products/product.jsp?item=1245 If this is not the right section on this topic, please move to the appropriate one. Best Regards.