I have several hAP ac2 routers and I use the switch chip way. Initially it took some time to understand all the details, but once you get it, it’s not difficult at all. Think of it as configuring a separate external switch, just doing it within RouterOS. It actually helps to really understand VLANs, so might be a good learning exercise.
I like to leverage hardware capabilities to their full extent. Like mkx said, the switch chip method gives you wire speed at the chip level.