Looking for 9S that are still on Solomon Island and want to quest. Please don't hesitate to give me a tell if you want to quest on SI or reply here. I do watch all the cut-scenes and have quest OCD (aka want to finish all quests in an area) so u haz been warned.
A few quests in the area are actually scaled to someone at endgame. "The Uncertainty Principle" is the one you're most likely to step in. The Lair missions, you're more likely to avoid because they're sequestered in their own special area.
The lair missions are even more than normal endgame missions, they are team missions that you will need company for even at endgame. Look out for sign up threads on the forums for these.
I went into Duma (spelling) Beach once (when doing the Ellis normal mission) and thought... Wow what's with mobs with the cool icons beside their name tag. BAM dead. I've looked up the icons since then. I'm avoiding any kind of lairs until much later (as I'm in QL6ish gear).