The hardest part is positioning the new stationary pivot bracket at the top of the door. But that just took a few adjustments so that the door wouldn't scrape the wall and fit snug against the other door. Then it was all good!
I also had to mount the top magnetic catch on something so it would clear the track. I used a scrap piece of trim board.
If your doors stay closed without this, then you might skip it, but for $4 extra it keeps my doors nicely closed.