Very odd. Spent most of the time speaking with the hiring manager (science / engineering) who I liked. Did not speak with *any* of my potential colleagues or peers (red flag).
Upper management seemed quite shady and disrespectful. Tried to execute a "bait and switch" regarding my relocation costs.
I declined the offer. When I presented my out of pockets costs afterwards (Uber, lunch, etc.) they ghosted me. That says everything you need to know about them.