Having put on his rose-tinted spectacles, Gazzola states that Napoleon's 1815 campaign partially worked:
"Every battle and campaign is a gamble. Some work, some don't and some partly work, as in Napoleon's case in 1815."http://theminiaturespage.com/boards/msg ... 291&page=3
If that was a campaign partially working, I would hate to see one that failed.
Fleeing for your life while leaving your routed army behind, being forced to abdicate and spending the rest of your life imprisoned on a rock in the South Atlantic seems to me like the epitome of failure.
By those standards, he must count the Russian campaign as a success.