I ride my bike on rollers using a Garmin Edge cycling computer and TPV on my iPad on a stand about 3 feet from my front wheel. I have tested and compared doing planned target wattage oriented workouts using one or the other and both. One thing that the Garmin Edge does that is far superior for displaying target wattage in a workout is it shows you a wattage range (in green) in which you are considered compliant, and outside of which is non-compliant and displayed in red. TPV on the other hand display just the single target wattage number. Having that range displayed is far better for smoothing your pedal stroke and staying in the acceptable wattage range that bouncing higher and lower continually around a single number. If TPV and Garmin Edge real-time synced rides, this would be no issue, I could just reference my Garmin, or if TPV displayed the range, I could just use TPV. As it is, I’m probably going to stop trying to use TPV for planned workouts targetting wattage. But I’d highly prefer to use TPV and ride the virtual routes during my workouts.