This was one of the most organized races I have been a part of. A couple of the highlights are water stations without the use of cups. Places to wash hands outside the bathrooms. The festivities after the race were so much fun!
If there is one recommendation, even with many waves in this race, it was very difficult to start as people were walking at the starting line many people wide. Not sure if the organizers can do anything differently or if people just need to be considerate of those around them.