This workout is a bit of a joke - it starts off pretty well, but then has 15 second ‘sprints’ at VO2Max followed by 5 minute recovery at power targets so low that they’re actually uncomfortable. I had to stop riding and edit my FTP up by 30% to make the workout worth even bothering with, and it was still trying to make me ride at 120W!
Being so very easy, it’s just a waste of an hour, which is a shame because generally speaking, the group workouts are great.