.... spent many years instructing, I enjoyed it thoroughly, and agree about the benefits so far as captaincy, situational awareness and CRM are concerned.
And some years later, one finds onself in the left seat of a shiney jet, on a wild winters night, a new colleague sat in the right, with 200 hours total time plus line training under his/her belt.
I appreciate those years instructing for what they really were .. an education !