Overall, I thought it was good. Some fresh new announcements, and some meh things. Super excited to original Monkey Ball back in it's original form. Thought Metroid Dread looked fantastic. Love the direction it's going both visually and gameplay wise. Mario Party Superstars looks solid. Seems like what the original Mario Party should have been. Super glad to see WarioWare back. Kid of meh on everything else. BoW2 looked okay, it looked like they just showed off more new features than anything substantial. I suppose it's just a first look, but I was think a sequel would be more in lin with Majora's Mask. Something completely different and unique.
Also, immense disappointment in lack of Donkey Kong. I'm guessing it's not clear if it'll be ready by next year.