This weekend I gave WordPress MU a test run and have came to the conclusion that at this moment I can’t recommend that anyone use it in a production environment unless they’re *really* comfortable with how it works.
Don’t get me wrong. It’s a nice system once you get it up and running. But this is still considered pre-alpha software. I have a great understanding of what I’m doing when it comes to installing software, yet installation was a bit frustrating even for *me*, mainly because decent documentation is hard to come.
If you want to give it a whirl, try it out on a development domain first (it should be setup at your web root and you have to setup a wild card DNS entry). And make sure that you’re comfortable with figuring things out on your own (there are forums that may prove helpful). And you should have a decent understanding of how Apache & PHP work.
With that said, I think the future of this package could prove to be a bright one, but it needs time to mature first. I’ll be keeping my eyes open for a stable release, but until then I’ll only be testing out the nightly builds from time-to-time.