My partner is of similar size (weighs slightly less ) and was totally fine in 23F (on PHL-LAS). I think 23F wins over 23A because you don't have the FA jump seat in front. Someone was sitting there most of the flight.

While the tray table is in the interior armrest, there isn't much of an exterior armrest, so your hips are not squished in, which can be the case for him in some regular exit rows (and why we didn't take row 22).

I was in 23D, and the tray tables are NOT in the arm rests of the middle/aisle seats, despite SeatGuru. I didn't have my ruler, but I could have sworn there was an inch or two of extra legroom, even though seat guru says their isn't and AA.com says "regular legroom" (although I think they sell the seat as either MCE or premium).

Either way, I thought it was a rather comfortable flight (for coach). The plane was in pretty good condition. Lack of power wasn't really that big of a deal. Make sure you're charged up before boarding, if your device can't last ~5 hours on a charge, find another device. If you're a business person running to the airport after meetings, you should probably carry around a spare battery/charger.