He is consistent that way, yes. Best to understand his goals and take the path of least resistance when he's set on his path.

[Very few people would stand a chance against Maul and it wasn't often the Zabrak could be convinced away from a particular course of action. Of course, Reaper knew he could probably convince Maul, but that wasn't something he did often, if at all. He didn't see the point of altering Maul's course after all.]

You can trust them as much as you can trust the rest of humanity. Listen, ask questions and decide for yourself if their principles are something you can rely on.

[She did seem to have naïve, but that was fine. With age came experience. She seemed to have a better head on her shoulders than some.]

That, I believe, you can do.