It's basically the same site but with a nifty new re-design and upgraded features available to high bandwidth subscribers. ie, sound files in the lessons section are up to 2MB now and there can be more than one MP3 per lesson so the sound files are better quality and can go into more detail. Plus there's unlimited downloads now so there's no more 3 file per day limit.
There's also a new flash display for tabs, a new Jam section, no advertisements, new search features, video lessons...
...did I miss anything?