From their inception in 1998 to 2007, it was 10 years of pure unadulterated suck.
But from 2008 to 2020, 13 seasons, they will have 6 playoff appearances, assuming they hold on this year. Plus 2 other seasons where they won 90 games but missed the playoffs.
I think that's pretty impressive considering their payroll and the fact they're in the same division with the Yankees and Red Sox.