Koala is the best value for money I have ever had. The company is constantly adding new and amazing features (at a phenomenal rate). I have rarely come across a company that listens to consumers as well as this company does. The company listens, develops and implements well thought through, useful and awesome features quickly and effectively. That is just on the development side. As an educational tool Kaola Go is in a class of its own, students are enthralled and cannot get enough, they do not want to leave class and they can't wait for the next class. As a teacher, Koala is the best gift I have ever given myself.