Pros: This was a two-level plane and I was given a seat on the second floor. The second floor was quieter and I had a lot of leg room which made the long flight very comfortable.
Cons: The flight was delayed approximately 2.5 hours. We boarded the flight and then sat in the plane as repairs were being made. The problem was "water leakage" and the restrooms were being worked on. Many people still used the restrooms while they were under maintenance. I'm unsure if that is what slowed down the repairing process, but if the plane was being repaired, I would rather not sit on the plane during the 2+ hour process.