Due to a rotator cuff injury I've been unable to practice many full swings so I haven't used my Skypro as much as I'd hoped. Just been given the all clear to practice again though so I will be using it a bit more next week.
So far I've only used it to stop over swinging and make my swing length a bit more consistent than it was and also to groove my takeaway. Worked well for these tasks.
I'm not sure exactly how much help it would be to a more experienced golfer, it seems to be suited more to practicing/grooving the basics rather than fine tuning a swing.