The main purpose of the meeting was to provide an in-depth update of the progress of the action and to assess the degree to which the work plan has been carried out. The partners presented the work that was performed during the first 18 project months in each work package, highlighting the major achievements and results. The reviewers showed great interest in the work of the AQUARIUS project and they raised interesting and qualified questions. Furthermore, they provided valuable feedback and recommendations for future project work. Overall, it was a very successful and fruitful meeting.