I have finished the game on the 360. Luckily, the issues I was previously dealing with were cured with a simple cache purge. I'm now migrating it to the XBox so that I can do a proper comparison of the emulation against the real deal.
As far as the game goes...it's definitely longer than five hours if you've never played it before. Much. I'll let you all know when I've finished the XBox playthrough and started writing the review.