I used to fly KLM World Business class
a lot and defected to BA around two years ago. I am looking at my little Delft house village as I type this! Although never drank the whiskey out of them.....
The product was fine transtlantic, although New Club World is better. However price wise, I wouldn't say Continental's Business First was that much better than KLM's product and both seem to be at the same price point.
The main reason for my switch was BA's infinetly better Business Class in Europe.