I spent almost eight hours in British Airways' business-class Club Suite.Hayley DominI flew in British Airways' business-class Club Suite for a long-haul flight for the first time.My seat felt incredibly private, had direct aisle access, and plenty of legroom.My in-flight food and drinks were excellent and I had a five-star experience.I've flown business class with a few airlines, but I recently did so for the first time with British Airways.I booked a Club Suite in its long-haul business-class cabin, Club World, for my almost-eight-hour flight from Heathrow in London to Logan International in Boston.The Club Suite debuted in 2019 as part of the airline's almost $9 billion investment in upgrading its passenger experience.