I've used it in the past and quite liked it but....Has anyone tried Xert?
- it has a very steep learning curve. It's worth listening to all their podcasts
- you need to ride a lot or it will tell you that you aren't training enough (I ride 3-4 days per week and that still wasn't enough)
- some of the workouts are more complicated than they need to be
It's a couple of years since I last gave it a go but it's certainly worth giving the free trial ago to see how it fits in with your riding. Join.cc is also worth a look. I preferred the simplicity of their workouts.