Comparisons of the spatially resolved stellar population properties derived from SED fitting on the G + L + E data cubes (ordinate) and the true properties (abscissa). These include all spatial bins from the whole sample of galaxies. We focus on four main properties in this test analysis: Σ_∗, Z, age, and Σ_SFR. The top row (a) shows results obtained with the FSPS model, while the bottom row (b) shows results using the BC16 model. The blue and red colours represent results obtained with and without applying the mass-Z-age prior.