Hi Stephen,
I recently found your plugin, paid for the bundle and have it running. While we are a non-profit, we generally do not hesitate to spend $50-100 here and there to keep our website going and to improve efficiencies.
The one thing I would really like is for the sign-up sheet manager to be able to enter volunteers into some of the tasks on the back end user their WP user name. And for all their signups to display when they log in themselves as though they had signed up themselves.
Thanks,
Greg