I just bought an EX5 and it's fabulous and yes, I did pay a bit more than I planned.  But it's already roadtested and proved worthy.  My only problem right now is the #@%** manual.  It's in English, but that's the best I can say about it.  It doesn't do much to answer any questions I have.  Also, they have a tech support, but it's long distance from the East Coast.  I'm not very happy about that.  Anyway, it's still a phenomenal keyboard.