While I still for whatever reason haven't started master mode, I enjoyed the rest of what this DLC has to offer. Trial of the sword was fun, though not very challenging. The korok mask has also been unbelievably helpful in my quest to find korok seeds.
My review of The Champion's Ballad: https://www.backloggd.com/u/MrSolo/review/105020/
My review of The Champion's Ballad: https://www.backloggd.com/u/MrSolo/review/105020/