To me, it all looks great, but then again, this will be my first totally new Pokémon since Pokémon Green.
Though I think they could have shown more new stuff in those 15 minutes? I would complain about only announcing 5 more new Pokémon, but unlike Pokémon Let's Go, I don't recognize at least 75% of the Pokémon shown in the video, so I guess I'm good. The Raven looks cool, but I'm going to main the sheep!
I have no strong feelings one way or another about Dynamaxing.
Max Raid battles on the other hand, I'm all up for that!
Anyway, the world (wild area) looks cool, and I look forward to exploring it.
Probably going with Sword, since Sword Wolf looks much cooler than Shield Wolf, and reminds me of Sif.