28 has been incredible. As the clock struck midnight on the 31st, I confidently said that 2014 was the best year of my life. But the reason that's so great is there is nothing keeping 29 and 2015 from being even better.
On a somewhat related note, there is a serious shortage of songs related to turning 29. You'd think there would be playlists full, celebrating the end of your twenties. So if you know of any, send them my way.