It lasted me over 6 years before I had to go and purchase another one for my laptop. Ease of Use Extremely easy. All you do is plug one end into the outlet and the other into the computer. Couldn't be more simple. Design Just like all standard cords for laptops Durability The cord is smaller on one side and it seems to get pinched in things if you aren't careful. It does seem to start to break if it isn't kept straight.