I’m 77 years old and do about 4500 miles per year. I love Zwift, it is making me work harder than my usual 90 minutes fitness outdoor ride. First, it took me awhile to put myself in the D group, as I was getting passed by everybody, LOL ! I wish the UI was more intuitive. Took me awhile to figure out that there are “free rides”, Traning/Workouts, and Events. There needs to be some sub-grouping as I find myself having to scroll through scores, and sometimes, hundreds of choices in all three areas. I recently signed up for a 6 week FTP builder workout, and find the workouts and format to be very motivating and accomplishing much more than on my outdoor rides. Still a lot to learn, but this is a game changer for me. Good work Zwift !