Was here for a total of six hours between two layo...

Was here for a total of six hours between two layovers to/from Japan. The airport is MASSIVE. It will likely take someone a solid 15 to 20 minutes to get from point A to B in this airport. That being said, we had no issue with staff who were blunt but not really rude. Security was a slog, but moved decently fast (took us about 45 minutes - they will prioritize people whose flight is leaving soon). Food and drink options were decent for an airport. The design of the airport is modern and pleasant.