I had the pleasure of chairing a session Mark ran at the itSMF UK conference.  Over the years I have seen many presentations purporting to demystify cloud operations, but Mark’s was the first to really deliver.  

His explanations were clear, his examples were credible and his suggestions both practical and pragmatic.  He easily engaged the audience and although representing a company selling cloud solutions, he never came across as selling anything other than his obvious passion for the subject”