indeed, all data from the device should be visible in GC:
- recovery advisor
- race predictions (in the vo2max screen on the forerunner 620 device you can see your race predictions based on your current vo2max)
Adding the recovery advisor to GC might open new functionalities: for example recovery advisor = 48 hours but in your trainingsplan/agenda you have scheduled a new training within 24 hours, a warning could optionally be given that extra recovery time might be needed or the next training might best be lowered in intensity.