Been on since Beta. Even in the best South Texas weather I rarely go a week without getting on Zwift. Typically due to lack of daylight vs length of planned training rides.

For whatever reason I can easily knock off a 2 hr Z2 ride, or a 2x20 threshold session on Zwift when the same "ride" w/o it would drive me insane. Zwift and a Kickr have been the only reasons i can stay on a training plan and keep up my work/life schedule. And they have been improving and adding road. So the increase is still well worth it for me.