Rated 4 out of 5 stars
For years, the only way to synchronize my Thunderbird contacts with my Owncloud server was to use the SOGO Connector. For years, I never knew whether my contacts would actually be there when I needed them or whether an important change I made would propagate properly to where I needed it. For years, I filed and watched the bug reports for some relief.
This http://www.sogo.nu/bugs/view.php?id=2575 finally prompted me to search for some alternative. And then I found Cardbook.
Folks, this add on is the solution to the SOGO saga/monopoly. It works, and it works well. Every single addition, deletion, and change I've made on any of my devices has synced to the others perfectly. And I've been hammering the thing to death looking for flaws. So far, it's been flawless.
Gone are my worries that I'll be out on the road, needing that crucial piece of information that I added the other day to the contact I'm visiting, only to find that it never got there thanks to SOGO.
Thank you, Phillippe Vigneau! You have no idea how many people you've just freed from a miserable Thunderbird/CardDav experience. Oh, wait, maybe you do. Just look at the number of downloads!