Worked well. My laptop would not charge unless I did the jiggle with the connector, eventually it stopped charging altogether, so had to do this.
Spent about 2 hours, but totally worth it. My battery indicator lights don't seem to work, but at least the Macbook charges properly.
Why did I not do this earlier! I wasted 2 years of my laptop life struggling with the trackpad and external mouses. This was pretty easy.