I'm up to 2 hours of ingame time (which probably took at least twice as long considering how often I like pausing). I've explored one side of my map completely, and have found nothing really worth taking there, beyond one system that had both an ARS and an armored golem on it. Grabbed the station (got spire gravity ships), and just activated the golem. There's no real reason to keep the system, so I'm probably just going to order a full retreat once I strip mine all the asteroids for some penetrators and not sure what low-level spireships I'll make. Incidentally on that planet there was some sort of AI-reinforcement increaser, which my ships automatically blew up, making me eat 10-AI progress, oh well - life goes on.
I'm thinking maybe of starting my own "after action" report to update my newbish gameplay if people are interested!
Edit: I'm playing on hard golems, medium spire, but I haven't seen any of these alleged super waves yet. So clearly its nothing for me to be worried about later on.