Last summer IAH-LHR equipment swap to the last non-polaris 789 flying. everything got jumbled up with the config change but I was paying attention so grabbed 1E (bulkhead middle - aisle access).. Was asked to switch to 1A so couple could sit together and I said no and apologized that I needed aisle access. The look on the wife's face was priceless. She was in disbelief. They got it sorted with others so all was good but as much as I fly I am very particular about the seats. they arent all created equal.