JUst got it in the mail and played it for a half an hour.
Powerboost, better sound, much 'fuller' and different sounds & tones...
It totally blows away other overdrive effects.
I'm so happy I got it.
The original receipt was stil in the box. It was bought in early 2010 at Rare & Vintage Guitars (for all you freaks, google that shop, it's paradise) in London. They paid 320 pounds for it. Not exactly cheap, right?