Sems like to be the only SEF component which is working for 1.5 proberly at the moment. Tested also the other ones which are still having to many errors at the moment so you can't use them in production (ok, some like SEF404 are still in Beta). If you are looking for a sef component for you production site, I think there will be no alternative to it.

This little mambot is just great and a pretty good help for title and key optimization, but what I am really missing is, when you are using it within a multi-language site, I would love to translate the overwrite parameters for the sitename, title, description etc.

A great component for every joomla installation. I have test it with v1.012 and v1.013 and both were running quite easy with the installation. The performance increase is unbelievable. What I am missing is a better docu, I mean a better explanation of the different settings etc. Also I could not find any statement what are the differences between the DB and file caching method, in the view what are the pro's and cons.

but it's not 100% perfect at the moment. I was sending out a newsletter to just about 32000 subscribers and it has shown me the borders of the software.
Some little, but important, things have to be improved like the sending process which has to be moved into a batch process for larger lists, the bounce handling (which is announced but not implemented yet) and last but not least a throtteling process. I hope and think there will come up some improvents by the developer team soon and Acajoom will have the same or even better functionality like phplist