Stainless steel is highly corrosion resistance, allowing it to be used in all types of environments. Even at elevated temperatures and pressures it is resistance to fire and heat.
A full tang allows for increased force and leverage. This also increases the amount of stock metal in the handle of the tool which can be very beneficial for the life of you knife.
A karambit will offer you functionality straight blades cannot. The curved blade allows for easier cutting of difficult materials, better access to targets, and the ability to use unorthodox angles and approaches.
This added design means that if the worse happens and you're trapped. Your Karambit will be there to help you create an escape immediately!