Despite flying on a very regular basis, somehow I have never ever had the luxury of flying Club Europe. Well I did fly Club World last year from New York back to London (when we were unexpectedly treated to a free upgrade courtesy of British Airways).
But to be honest, I struggle to see the point of spending extra cash for the upgrade to Club Europe on a 1-2 hour short-haul flight within Europe (neither can I see my client voluntarily splashing out for it).