The best thing about this product is it's versatility, which makes me able to use many different materials in my creations as well have them be very accurate for medical needs; I believe there could possibly exist more features but everything offered so far has been excellent! We are using these products at work specifically when we do face transplant surgeries or other procedures like cancer treatments where you need accuracy because of human bone density differences between patients/individuals - they give us great results thus allowing our team members who will perform surgery during each procedure time needed (we're doing 30+ transplants per year). It does not feel too heavy once used correctly even though its weight can get annoying from repeated usage over longer periods sometimes due their size alone if one were carrying around several pieces inside your backpack along side multiple accessories etc., however i find no issues currently since only.