I have engaged Peter in culture change in several factories with successful results. He is a master at reading what is happening in the room and capturing groups and individuals for development. My employees' feedback is generally very positive:
The buzz when they get off the bus from an employee development - "the best training I've received, why haven't we gotten this earlier".
The feedback some time later - "I understand myself and my colleagues better, we have a better dialogue now and deal with issues before they become a thing"