The Joomla! Extensions Directory ™

This thing is pure raw power. It's unbelievable what Joomla! might be turned into by an extension!
But. It has its price: this is much harder to learn and get used to than Joomla! itself. And I really mean it. It's just too damn powerful and you won't expect to just start using it... And this is where the bad news comes: there is almost no documentation. Whatever there is is written in bad English, quite often - obsolete, the support forum is a mess. It's pain, pain, pain. And you cannot just rely on your intuition with it, no way. There are quite many new concepts you have to understand well before you could let your intuition guide you, so it takes both really much clicking and thinking. In a way you could think of jSeblod CCK as of Linux some ten years ago - it was fantastic and powerful but usable for only a bunch of dedicated and capable hackers.
What I see here is a team of brilliant developers coding like crazy and producing a revolutionary piece of software but missing the resources (or just the motivation) to create a software *product* from it. It almost starts looking like one when they release a next (much more powerful!) version or a complete rewrite and I really wish they had stopped for a while so that ... I could get on the train. But! What I am trying not to forget is that these guys are writing pure GNU GPL open source code which they are generous enough to share with the community and ... that's all. It is AS IT IS, like it or not, use it or not, and there's nothing more to say to them than Thank You. I think we just got spoiled to quickly by having *freely* available tons of very high-quality open source software and learned to demand too much. And instead of complaining I should just sit down and write a howto for at least some small piece of functionality that I have been able to understand and make use of, even though not much for the moment... This is how the whole magic about open source is supposed to work, remember?
And after all I guess when they are done with Seblod 2.0 they will have all their great ideas already materialized in code so they will have nothing left to do but fix, polish, support and document ;)

Although still listed as a "Directory" extension and the name itself means Sigsiu Online Business Index its really much more than that. It's incredible of how many applications for SOBI2 you can think of once you get to know it! Sure not all thing to all people, but it really opens whole new horizons for what you can do with Joomla! extended with SOBI2.
It works and it works great.
It has extensive and always updated documentation and quite a big and nice community.
It is extendable not only by design, but in reality - there are quite many SOBI2-specific extensions which make it even more powerful and usable.
It's open sourced under GPL.
It's actively being developed.
Only thing I would like to see in SOBI2 is some graphical redesign of the administrator backend which just a wish, nothing to complain about once you get used to it.
Many thanks to all core and extension developers for making their great work freely available to the community.

This seems to me like the perfect ticketing Joomla system. Clean, simple, efficient. Straight installation, painless user synchronization, ready to go.
I translated it in Bulgarian and even tweaked it a bit (it was easy!) to fit my purpose and it's in production now. I am using it as a simple communication system between all participants in a construction project (everyone is both a user and rep, the boss is admin).
Only thing I am missing is the ability to view the closed tickets once the answering party closes the ticket (the other one sees them with CLOSED status), but I guess my case requirements are far more specific than the general purpose of Huru - a helpdesk system. Sure it can't be all things to all people but it's just great for what it's meant to be.
Thank you for sharing!