Source: Eye on Baseball Staff, CBS Sports 
Look past the beard and the seemingly insufferable personality and you’ve got a 31-year-old who misses bats with power stuff and has pennant race/World Series experience. That’s what everyone wants in a closer.
Brian Wilson returned from his second Tommy John surgery with the Dodgers late in the year and a) pitched well (one run in 19 2/3 innings, including playoffs), and b) threw the snot out of the ball (sat mid-90s with his fastball according to PitchFX).
However, relievers are inherently risky and Wilson might be the riskiest coming off his second elbow reconstruction.