The 27-year old Celtic skipper will lead the Scots in their friendly with Estonia at Pittodrie Stadium on Wednesday night and Strachan was thrilled to hand the fearless midfielder the armband.
"Scott is good with people, if you know him. I looked round this morning, he wasn't training but he was talking to everybody at the Aberdeen sports centre today and they loved his company," said Strachan.
"Everybody who meets Scott thinks he's fantastic.
"It is just if you meet him on the pitch he becomes a different person.
"Things were not great for him when he first came to Celtic, but he never let that affect anybody else.
"In life you are judged upon what you are as a person and as a person Scott is different class.
"He has never had a problem with anybody I know who has worked round about him and he has had a lot to deal with in his life.
"He is mentally strong. Whatever goes on around him does not affect what he is meant to be doing as a football player. He was always a terrific player, that is why we bought him from Hibs.
"He does things not in the training manual, it is athletic ability and a big heart. Sometimes you just have to let that go.
"Scott is the type of boy who won't ever fully mature but that's no bad thing. We've had all the nonsense."