Some of the short papers in the proceedings have fonts that are too small or line spacing too close for easy reading. Standardized format should be enforced for the papers. There are too many papers covering too wide a range of sub-topics in the congress. Consequently, some papers are too brief in coverage and presentation schedule is too tightly packed. Too little time for discussions.
Some papers are extremely poor.
Many topics and results have been already published and presented earlier. Seems that an international papers committee has not been involved in papers selection. Geographical situation far from everything and hotel far from each other. With not time between talk. It was distracting to have people come and go during presentations.