I confirm that reminders are now synced.
I’ve done some tests also using recurrent event and infinite event ad it works fine.
I understand the single address book per account issue and agree with keeping it as is. However, it would be nice to have the capability of copying an account so if there are numerous books it’s not necessary to enter there login information over and over. This may be an Android limitation, but the ability to change the name of the account would also be nice.