I like how easy it was set up with our district, we used their free account but upgraded during testing phase & have been very happy since then! Customer service has also always made available via email if there are issues in between time periods of scheduled events (ie - holidays).
Wish they had more scheduling options outside just year round schedule dates though so some things would be easier than having them do all setup work themselves at end each quarter/monthly event etc.. Great system overall as long term partner within education market place!!