I now have a monthly Xert subscription in addition to my annual TR subscription.
I wanted to try it a few years ago, but I did moderate duathlon training, but you would need 2 Xert accounts for that.
Now I have given up running and am only concentrating on cycling, because TR AT and AI FTP are currently out of control for me and are very error-prone.
Also I sold my Garmin and ordered a Karoo 2, with Xert I can send workouts to Karoo, with TR I can’t!
In any case, it takes a while to get an overview in Xert, but once you understand it, everything should be logical.