I have never played FFXII...How long/difficult is this game?

[Mirage]

There are many videos around with kills way less than 10 hours. If you know what you're doing, you can do it in 3 hours, and in izjs, 1 hour.

-edit-

Actually, here's a vanilla FF12 Yiazmat kill in ~90 minutes

http://www.youtube.com/watch?v=chHeBen4Yuo