While talking about a good boning knife, there are some aspects that you have to consider, such as blade design, handle material, blade size and safety. If anything solves our purpose efficiently, then it is considered as good. The curved shape is for performing delicate jobs like removing the fish skin and filleting the quail, whereas straight varieties are good for removing large pieces of meat. Moreover, flexible blades are suitable for cutting difficult shapes, whereas stiff ones are best if you have tougher and thicker meat to cut.