Disney gets it right far more than they get it wrong.
I had a great experience with the Magic Bands and FP+.
New Fantasyland is AMAZING. It might be my favorite area in any of the parks. Every single aspect of it is perfect: the waterfalls, Beast's castle, the music, the Tangled area, Gaston's tavern, the Little Mermaid, Be Our Guest, Seven Dwarfs. I can't get over how much I love it.
I haven't seen it in person yet, but the pictures of the new Haunted Mansion gift shop and new Peter Pan queue look awesome. I love that they're starting to do more varied merchandise.
I'm only thinking of the last couple years, but obviously stuff like TSMM, Everest, AoA are all fantastic additions to WDW.