SEA-LHR in "upper class." Service was superb and highly attentive. Highlights: willingness to pour a sample of wine before a full glass; constant beverage refills; making tumhe bed before it was time to sleep; conversational, happy crew.
Food and menu great! Soup delicious, as was a tomato and mozzarella salad. Entree, a prawn risotto, also yummy. Cheese plate nice. Breakfast card had full range of options from sausage and eggs to healthier fare.
Cabin is sleek and cool, and the on-board bar is a nice feature that adds some roominess near the lavatories. But the main seats need work: they were very narrow for business class, barely reclined, had to be flipped over into bed mode by a flight attendant (making it hard to recline amd relax) and had barely any storage, even for small items like a pair of glasses.
Overall, though, a nice experience.