Just put the 6.5m Method (the largest size in that range) in the air and on the snow for the first time yesterday. I used the Turbo bar on 25m lines, but the standard control bar will work just fine.
The Method is a higher aspect freestyle kite with good lift and lots of horsepower for its size. I can say it was fun to fly, as its been awhile since I was lit up on a fixed line kite, I was hooting all the way with that extra power and no way to drain it but to edge hard and go fast.
To answer your questions... here goes:
Good for beginners, yes, but the Flow Kite will be easier to manage and less change to purchase. I found the Method on the Turbo bar took some experience to manage and control on landing. The standard control bar works better as it has a different range of control on the brake lines. But the Turbo Bar is fun to fly as you have brake control on the fly and pulley bars give a different feedback to the rider. All in all the Method is by no means beyond a beginner, but it is a higher aspect kite. I would recommend the Flow over the Method to a beginner. I would recommend the Method to a rider seeking a fixed line kite that has some punch to it.
Design wise, the Method is a fixed line version of the Frenzy, close to it anyway. Similar construction and based on the newest CAD programs at Ozone. All in all a very stable kite that handles gusts well and delivers solid power. While its main market is as a performance buggy kite on handles, the Method is a powerful Snowkite in an affordable package.