I did the Build Me Up plan over the fall and was pretty pleased with it. 25 watts positive and 5kg negative made a real improvement in my FTP. I don’t have a smart trainer so it was sometimes difficult to hit both the power and cadence targets, but if you have to choose, choose power. I started during the fires when it wasn’t healthy to ride outside, and when the air got better I was able to do quite a few workouts outside, which is a nice option.