I've had the sushi in the BOS AC and in the FL (which I assume is the same, although presented more nicely). Although I'm no sushi maven, and although it certainly was not the best sushi I'd ever had, it did exceed my expectations. I suspect that sushi mavens will be disappointed (and I mean no criticism in saying so); but for the rest of us, it's a nice alternative to the limited options on the AA side of terminal B in BOS.