Aw I love him! I'm Scottish though so I have no bother understanding him. He just did a program about people not understanding him. He ended up seeing a vocal coach and everything.... Very funny :-)
I find the Scots accent very hard to understand. If they slowed down a wee bit I might catch on!
I unfortunately had to work with one in the Middle East and had to spend 2 weeks stuck on an island with him.
I just used to nod my head when he was talking, which was a lot so he thought I understood him, what a boring fart he was and as tight as a cockroaches Yabbie :-)
I think he's funny - but Scots accents vary hugely (as do English ones) and some are far more difficult to interpret, especially if they are using local terminology. It's only a matter of getting used to the accent.