This COST Action has successfully delivered on its project’s objectives. The Action project team had 37 members from 17 different countries. Consequently, COST Action 846 has been extremely effective at improving and encouraging research co-ordination across Europe. The completion of a series of Short Term Scientific Missions by individuals from 9 different countries will aid the dissemination of research methods and also help develop the level of expertise in this research area across Europe. The management team are to be commended for maintaining the project’s momentum throughout its duration. Specific comments relating to the delivery of each project objective are provided below and these outline areas where the provision of further information and clarification would have been beneficial. The report also includes recommendations on some technical aspects of this project.