What @nehon and @Momoko_Fan say about this one? 
It looks pretty interesting.
http://ogre3d.org/forums/viewtopic.php?f=11&t=63929&view=unread#p423569
As told : Area light shadows are currently never used in games, because techniques to render them are incredibly slow, so they don’t really work for real-time graphics. 
ah that’s why I asked for their opinion 
That’s nice, i’d like to know how it perform though…
Also the fact that it only works for vertical views really reduce the use of it.
Before we have area lights it might help to just have basic point lights, which we don’t …