Do you think the polls will accurately reflect the election?

Most polls have Clinton leading, FiveThirtyEight gives Clinton a 78.9 chance of winning via their simulations of the election (I know some polls say Trump will win, but none that are respectable besides maybe Rasmussen). Do you think the election will be vastly different from the polls? Why do you think so? Please no anecdotal evidence such as "everyone I know is voting for candidate X".