My wife's short so she's actually quite uncomfortable in a business class seat unless it's reclined-- seat bottom length is an issue for her, sometimes even in economy. On the flipside, I'm of pretty average height, but the flat seat cushions mean I always feel like I'm sitting awkwardly on my tailbone. I wonder why they couldn't just be more like a car seat, with some thigh support. I'm not sure I've ever been in a car seat less comfortable than the _best_ economy airline seat.