Probably worth considering as well that no adaptive system or coach can give you the kind of feedback your legs give you every minute of every day. While adaptive training does a great job of adapting to the data it receives, and Train Now does take unstructured rides into account, none of that can adjust for the fact that you’re coming down with the flu, just had a huge stress filled week at work, or your tricky knee picked today to give yuo problems.
Like GPS navigation, a training prescription only goes so far. At some point, you have to evaluate your own readiness to train and override the training schedule when appropriate. Sunday’s group ride turned into a 4 hour hammer fest? Do you really need TR (or anything else) to tell you that Monday morning’s stretch Vo2Max workout might need to bump back to Tuesday?
I’m certainly eager for PL 2.0 to get here, but even if that’s everything I’m hoping for, I think I’ll still have to occasionally override training because no software package or coach will ever know as much about my body as I feel every minute of every day.