Time-dependent double hybrid density functionals (TD-DHDFs) as defined by Grimme and Neese show promising results in areas where conventional TD-DFT approaches struggle. TD-DHDFs were the first density functional approximations to describe exciton-coupled circular dichromism spectra. When paired with range separation, TD-DHDFs also gave a more balanced description of valence states of PAHs and states with CT character, resulting in some of the most robust treatments across challenging excitations. Overall, TD-DHDFs prove to be robust candidates for the treatment of single-chromophore problems; see ref. for a review.