After reading the graham hunter book about Barca, Guardiola sounds like one of the most dedicated coaches in the world. Apparently he watches hours and hours of footage of opposition teams to learn their weaknesses (even did this when he was Barca B coach) and demands 110% from his players at all times, even in training. If any Barca player was 1 second late to training or he felt they weren't putting the effort in they would be fined and he's not scared to give players the boot (see Hleb, etoo, ibrahimvovic etc)
I think it reeks a little bit of Rodgers/Liverpool at the moment though, if you excuse the prematureness and hyperbole a little. He was comfortable at Swansea because the philosophy was already there. I wonder sometimes if Pep and Barca was the same. Will be interesting to see how he does somewhere else.