A viable alternative to common Time-Dependent Density Functional Theory (TD-DFT) calculations is the Green's Function, Bethe-Salpeter Equation (BSE@GW) approach. It has demonstrated notably strong performance for solids and interfaces, but also delivered accurate results for single-point calculations across a wide range of molecular systems. Recently, we have provided a systematic investigation of electronic excitations of first-row transition metal compounds using BSE@GW. It was shown that BSE@GW often outperforms TD-DFT in terms of the prediction of absorption spectra. Even more important, however, is the observation that the mixing of MLCT and MC states can be accounted for with results being robust against variations of the XC functional.