Downloaded, installed and configured this one quite fast. I had to do a little bit of research due to my site not be in english, but I found a great guide on how to do a translation on their site. I did that (not actually translated anything, just copied the english language sets) and it works pretty good. I will love to see some image / attachment functions though. Its been promised in the first beta, but no date or progression report is out yet. Considering the alpha state of this one I see forward to the first beta, and its absolutely one to watch closely. The documentation is not so good (could have been more of it), and the support forums are not so active, but I guess it will be if this project pass its alpha state tag.
I give it average due to it been in alpha, but still a good alpha version. Its the only 1.5 native forum out there.