This extension has to potential of being the top SEF tools.
It's deployment is somewhat complicated due to the high quantity of options.
I would expect things like the Bookmarking tools to be set to a single setting not all of them published immediately on installation -> you end up with a thousand bookmarking icons in your site upon activation? It also doesn’t seem to render the icons on home pages ?
In reading through all of the other reviews, it’s clear that most are really satisfied with the extension. As am I in general. It looks like most are unilingual sites since no one seems to discuss issues relative to a multilingual installation ? This is where it gets less fun -> For multilingual sites, the extension becomes really complicated to setup. Due to Joomla’s suggested multilingual setup obligating one to use a bogus empty menu for the “all” language (which is then hidden in an unused menu group), for MijoSEF to work properly, you need to setup a manual redirection in your .htaccess file which ends up adding a URL label to the home URL of your site (some have mentioned this is not recommended for Google SEO but I’m not sure about that). I've brought this up with the dev team a few weeks ago and I’m still waiting for a response.
This leads me to support. It's quite good, but not perfect. When integrators such ourselves deploy important extensions such as this one (and pay for it), we expect good response time and full follow through in each case. I would give them 80% on this which is better than a lot of other extension dev companies. I just thinks it should be upped a wee bit to be perfect.
As mentioned, I’m sure, with time, this extension will become the leading one for SEF. I really hope to see it evolve from a 4/5 to a 5/5.