Ing II does increase quality, but the effect is extremely small on 3- and especially 4-star crafts. Innovation doesn't give a 50% boost to quality, it gives a 50% boost to your base Control, which is useful and more noticeable effect than Ing II, but not better than a Good condition or Great Strides (which is better than a Good condition). Ing II costs too much to just be used as a filler for Good fishing, but Innovation fills that role nicely, and you should always try to use it if you can.