How informed your members will feel. This screenshot shows an example of what your members see when they login to your StudioBookingsOnline calendar page.
They easily and very clearly immediately see -
1. The last time they logged in
2. Their current balances for classes, privates, etc
3. Upcoming classes they signed up for and recent classes they took.
4.They can click 'view all' to see their full class history list.
5. The 'My Info' link will take the member to their credit card profile if they decide to buy your packages online and if you offer this feature.
6. They see a clean clear calendar of your classes to book as they wish.
No wonder your members aren't calling you as much :) and you have so much more free time to enjoy 'your' time.