I took UA 3 on 17 December ORD-OGG-KOA in row 1HJ

plusses:
-good legroom for domestic F
-a good lunch with appetizer. Then they fed a snack on arrival
-3 movies played on the 8.5 hour flight
-777 is fairly roomy around lavs/galley/aisles in F
-excellent crew and was attentive for all beverage needs

minuses:
-very long flight in domestic F, particularly for not having the flightshow.
-doing the stop in OGG. I may as well connected in HNL or SFO/LAX to be honest.
-No service really from OGG-KOA (nor should there be). but this upset the folks going from OOG-ORD.

I did my return through SFO...would definitely do it again in comparison no matter the A/C if in F.