Nothing! I love how easy Netcamps is to use. It's so much more convenient than having to go through the process of paying online and then going to the bank to transfer money into my checking account. The software also has some helpful features like reminders for camp sessions, which helps out with organization. There are some minor issues that I would like to see addressed. I think more options should be provided for when registering campers. For example, campers can be registered for multiple days instead of just one day.