What do you think of learning to ride on a horse simulator?  I was very sceptical, thinking this a very gimmicky, expensive waste of time.  

However, having had the chance to 'ride' a simulator recently, I was very surprised.  It's extremely sensitive 'in the mouth', which made me think that actually, this is quite a good way to help riders become soft in the hand.  Although the movement feels a bit clunky compared to a horse's natural movement, what convinced me that this was a good idea was the fact that you can learn leg aids, rein aids and seat aids, without the worry of the horse spooking, or following a pattern in a school.  You really can focus on learning the aids without worrying what a half-ton animal with a mind of it's own is doing.  

Has anyone else 'ridden' a simulator?  What do you think?