I've recently flown in both the Skycouch and PE (on the 777-300ER). While the PE seat definitely wasn't uncomfortable and had a considerable amount of legroom, I would say that the Skycouch is probably more preferable for sleeping and although the meals were far better in PE, the service was probably about the same between PE & Y. It's much of a muchness really and I think ultimately it will come down to your own personal preference. In future, I'd be happy to get either.