Sync with the native CalenGoo calendar, not only Tasks of it
CalenGoo allows the sync directly with Google Calender.
Stock Calender syncs only a short period of time. So allows CalenGoo making a Series like Birthdays or another Events even if there is no Contact by Google. You can make an event started 1965 and you see the age of it like 67. But Agenda Widget can only Sync with the Stock Calender so you cant see the age of event.
If i deactivate stock SGS2 Calendar with Titanim Backup, Agenda widget only shows, there is no calendar installed. So please support CalenGoo, not only Tasks of it!
As mentioned in my comment, please vote for the content on the Calengoo uservoice as it is required for AW integration (http://calengooandroid.uservoice.com/forums/86409-general/suggestions/2997984-add-a-calendar-provider-to-allow-other-widgets-and)
To get this functionality the Calengoo dev needs to create a content provider. Please vote for the linked issue so they know you care :) http://calengooandroid.uservoice.com/forums/86409-general/suggestions/2997984-add-a-calendar-provider-to-allow-other-widgets-and