I really like the Dua. It is a stout mid size package with a 3 inch blade that is all cutting edge. The overall f&f is excellent, rounded edges, great detent, flush female half of the fasteners, etc.
My original Dua was a Ti/Ti DLC model with the toothy edge and cut through what ever I asked it to. It developed lateral blade play so I contacted Grayman. Sue responded and told me to send it in. After receiving it the first communication was asking me if I'd like a refund or a new knife. I asked if I could pay the diff and get a Ti/black G10 model instead of another Ti/Ti and it was not a problem. Literally no questions asked, do what needs to be done to make the customer happy. The Dua and Grayman Knives will serve you well.