helvirago | Pimm's cup

Have any of you ever had one of these? I was browsing for summery things and things using cucumber, and ran across this concoction. Is it any good? It seems like a ridiculous amount of work for a drink, so what's the deal? Is the fruit (and vegetable) really good to eat afterward, or is this some kind of conspicuous display of wealth thing -- "I have so much money, I can waste food and servant time making this bizarre thing"?