No idea if my stats will help you, but here goes.....2434 lessons (68.3% complete) and 281 hours training. The problem is that the lessons left are way over my head so my training now consists mostly of review. I too wonder if anyone has actually done the entire course. I do know that the tactics courses have certainly helped my play and were a necessity for me before I could get anywhere with the Tactics Trainer.
Does anyone have an estimate of how long it takes to go through the entire body of content? Let's say I spent five hours per week in Chess Mentor (going at an average pace in adaptive mode), would I reach the end of the content and if so how long would it take?
Thanks