Ok I'm JFK lounge after red eye from HNL to LAX and sharklets F from LAX to JFK.
Found the overnight 757 tough going but blessedly short at under 5 hours. I have previously flown the day time and would not choose the overnight again if it could be avoided. The sharklets however was excellent and AA have really pulled out the stops on the flagship First product. Disappointed in the flagship lounge in LAX which was nothing special.
So far the club world experience has been terrific with great staff and good pre flight dining. The wine is half decent too. I even managed a spa treatment.