I worked with CSI services on several small and one very large publication with multiple authors. CSI was able to keep the large group international group of researchers focused on the task at hand and provided individualized advice and intensive writing support throughout the manuscript. Rigorous feedback was given, not only in terms of communication. Attention to scientific details and proper referencing was deeply appreciated. I definitely got more than I paid for! I will use CSI again and again for tasks such as these as well as professional editing and proofreading.