An unpopular opinion, but the fact they made the boring hyperactive at all times Barry, toned down as they focused on his relationship with his dad and his motives for being a trainer and his story after beaten by Jupiter, makes him actually interesting for once and a POV I'm happy to see
Honestly, Generations covered Sinnoh pretty well too along with DP anime. We had the heatran plot done, a SoL old chateau horror story, Team Galactic in Platinum, there wasn't really anything much. This imo felt like a perfect tease for BDSP as well
The character designs and animations was GORGEOUS here, like really Barry and Lucas looked so good and the battle against Palmer was amazing. Also Jupiter looked really, really hot, esp when she beat Barry, girlboss right there
I liked how it's a go through of sinnohs journey (When Cyrus was using Dialga to distort time the animation then too was stunning) from a POV of a character who was quite boring to me in the games, giving him actual depth as we explore his relationship against Palmer.