Does what it says, and well!

Downloaded the app and ran it to simply sync all Gmail contacts with Address Book.
Chose this app because having contacts in default Address Book database means I can sync all my contacts into Daylite as well (other apps add Gmail groups to address book, or secodary address book for only Gmail contacts).
Works well as advertised and no problems. Simple.
Managing duplicates and mergers still requires some manual attention, usually in Gmail.

a63ntsm1th about Contacts Sync for Google Gmail, v3.8.7