Duvel is a massive 8.5% Belgian pale ale, made with Pilsner malt and dextrose. It is extremely dry to the taste, probably a result of adding fermentable sugars to the wort. It has an almost Champagne-like dryness, which, when set alongside a high alcohol content and plenty of fizz, leads to a beautiful beer.
I made a schoolboy error and didn't leave mine standing long enough, meaning the yeast was mixed in and the resulting drink was quite cloudy. I could detect the yeasty taste and I think this also resulted in an increased dryness. It was still amazing though.
Mrs Nelly thought it was fantastic and I will definitely have to have another one soon. A little more patience will be needed before pouring next time.