As all lore rants go, this is a personal taste sort of thing so others might feel differently, but here goes:
Loving dragonriding and new talents, and the plethora of ungated renown activities. Feels like how Shadowlands should have been.
Story-wise is...a bit less stellar though. It feels like cataclysm and shadowlands with this singular enemy faction that's responsible and manipulating everything bad that's happening (twilight/old gods in cata, jailer in SL, primalists in DF). That kind of singular threat makes the world feel smaller, in my eyes.
Better execution could be found WOTLK (both Yogg Saron and the Scourge as main threats), bfa (faction conflict, azshara and old gods), and of course Pandaria (Mogu, Nantid, the Sha, and Trolls as enemies, and the plethora of interconnected friendly cultures with rich histories such as pandaren and jinyu).
I know there's hints of the infinites becoming a big threat later in patches, but that still feels a bit too few for me. Could also be i'm just overwhelmed by too many dragons as unsurprisingly the expansion is focused on them with little else to explore (though the tuskarr soup maniacs are an awesome touch).