I've got an LE, code loaded up fine. Download the zip, extract it and copy what it extracts onto a thumb drive. Turn off game, insert usb, turn on game, update. Easy.
Thoughts on the code:
I feel like it was a mistake lowering the default mode difficulty to Easy. On the Prem/LE you can destroy modes on the upper playfield just smashing into the Light Lock switch (especially after adding in the new plastic/bump that knocks the ball right back to the flipper). I'm getting Knight spelled on pretty much every game (even the bad ones) as a result of this. Basically, with the default factory settings with this code you can almost guarantee you'll be getting an extra ball, spelling knight and progressing through at least a few modes on every game. It's just too easy now.
My second game on this code and I put up a 126 Mil game completing only like 3 or 4 modes (with a 7.5 deg slope and a relatively sensitive tilt). I'm probably going to be doing some menu diving just so I don't feel like I'm close to finishing the game every time I play.
That being said, most of the update is really great, and I'm excited to get to the new wizard mode.