The attempt on migrating StratoSector from e107 to Joomla was a total disaster. The boggest problem i had is that the site was realy slow. I thought that the CMS in combination with the hoster was the reason that the site was so damn slow some times. What it turned out to be is that the hoster is the sole reason and installing Jommla only worsened the problem. I couldn’t get a nice response time whatever i would try to do. One more problem was that i would have to loose content (users, arcade game high scores etc). Those two troubles made me descide to go back to e107. Nothing like the good ole friends. All in all, migrating from e107 to Joomla is definitely possible but i wouldn’t recomend it on a shared server. Test before you decide 😉
/me out