I have no complaints about these buses, only thing is modders if you change something on the bus, having us do it ourselves is a bit risky as the model.cfg files for these buses are quite complex (maybe to deter any changes in the first place)
Other than that the original models are perfectly fine, the articulation of the C2 doesn't bother me. At least we have a Citaro C2 i've seen many attempts at a model and no ones succeeded. So thank you Darius for these buses.