I just heard about Gene Wilder's passing. May he rest in peace.
For me, it is the complete opposite. The past two leap years (2008 and 2012) have been utter **** on my end due to the many personal issues I had to deal with. If I were given the option to retcon those two years and effectively make them non-canon, I would go for it. 2013 and 2015 have been okay, neutral years that didn't really do anything new to me. And I have mixed thoughts about 2011, as some **** happened to me during that year, so I can't say much.
2010 and 2014 have been the only two great years to come out of this decade so far, in my opinion. Lots of new experiences went on to happen to me during those two years, and everything was just refreshing and new period.
Normally, leap years would be **** to me by default, but 2016 has been surprisingly a decent year so far. But who knows, things could change in these remaining four months.