CSS-AIMS is computationally feasible but needs pragmatism to select a couple of parameters that balance cost and accuracy. Excessive growth of spawned TBFs increases the cost exponentially. In contrast, the merciless killing of TBFs may lead to less accurate nonadiabatic dynamics for a long time. On the other hand, DC-FSSH is a reasonably inexpensive method and produced results with a semi-quantitative agreement with the other methods. Considering the computational cost and technical nitty-gritty among the methods considered for long timescale dynamics, the trajectory-based approaches, AIMS and DC-FSSH, will be good candidates for further development.