We never fight is it good for our relationship?

Me and my husband have been married for almost 4 years. I recently read an article saying it's healthy to have occasional arguements. It made me think about our relationship and we never argue about anything. We are very much in love and very vocal with each other. He tells me everything and vice versa. We bicker For a few minutes about little things but we never have fights. I'm not holding any feelings back or anything. So is this good? Or do we need to fight?