Workout feature is great, but it needs one little but very important improvement:
In Zwift, the wattage target is too wide for my taste, it works with a unique number and allow for + or – xxx Watts. Because it’s too tolerant, this affects the efficiency of the workout.
We need more control over the targets, instead of a unique target number; we should be able to set our own low and high target (in FTP% or in Watts). This is the way most program like Today’s plan or PrefPro works.
This is not a difficult improvement to make, but it’s an important one, if Zwift wants to be a serious training tool.
Other interesting improvement would be ability to import ERG and MRC Workout files