This game is just the shakeup Pokemon needed. As a major Sinnoh fanboy, hearing the new remixes and seeing all the Gen 4 fanservice in this game was an absolute wet dream. The wealth of QoL changes made in this game are super welcome (PLEASE make how trade evos work here standard for the rest of the series), and what's more, this game did the impossible and made catching Pokemon actually interesting. The story is fine, not amazing, but serviceable. The bosses are probably the low point of the whole experience, but even those are merely decent for the most part (FUCK Tornadus in particular). I would've liked more trainer battles, but I ended up seeking out fights with Alphas and such often enough that the lack of trainers barely felt like an issue to me. If every Pokemon game going forward were like this, I don't think I'd complain.
(Also unlike BDSP, I can actually use Porygon-Z in this, so it's automatically better)