Pretty mid, to be honest. I'd write a review if it made me care enough, but 5/10. Get the gallery save, watch them, wank, avoid the idiot protagonist and semi-okay story.
You don't need one. Follow the path (above) to the save game directory, the save games are in plain text, you can just use notepad to edit them. give yourself unlimited money and do all your training. I'ts all pretty easy after that.