Very good piece of kit to have if your shooting on the 5d II, it is light and has a long battery life. the only worry is the jack cable, it will eventually break as it has a very thin and week feel, but you get a 10 year warranty. so the only real issue is that it doesn't come with a box to store it away when on the move as you will be if your a 5d shooter. a very important tip is that on the internal settings you must have the level turned all the way down one click away from the bottom to get a really crisp recording. if not there is a hiss.