This is slightly off topic because I'm talking about Chase Sapphire Lounges, because my last few recent visits to the ones at LGA, JFK, and IAD have been kinda underwhelming. I don't know if the Boston one is still as good, but the last time I went about a year ago, they were down to using paper plates and bowls. The LGA, JFK, and IAD experience for me was mostly just ok, the space is still beautiful and the staff are mostly very nice. However, the food options were very limite compared to grand opening, just a handful (5-7) things on offer at the buffet and a couple of items (one noodle option, one burger and one Beyond/Impossible Burger option, the kids stuff and fries). The burgers were mostly luke warm, you know the patties have been sitting on the assembly line waiting for the order. The new PHL one might be good during the grand opening, but they seem to slip in quality over time. So overall, I'd say the experience at Flagship Lounges (at least at DFW FL versus Capital One next door), is competitive, if not better. There are more things on offer and more shower availability, and no half hour waiting list. That said, AA should get the PHL Flagship Lounge ready for the summer season if they want to keep the premium passengers.