I finished season 2. Overall it was a straight upgrade from season 1 in almost every regard
- arcs were given the time needed to tell their stories and the conclusion in Drum Island was great compared to Arlong Park in S1
- The new additions to the cast all did a great job with special mention to Miss Valentine, Vivi and Mr. 3
- there were some stinky moments with the VFX but where they mattered the most looked good, Smoker's logia and Wapol's munch munch fruit were highlights. Luffy's stretching also looked better than in season 1
- Usopp was the MVP of the Straw Hats this season, his best qualities of pre-TS were at the forefront and his cowardice was endearing. His actor is going to absolutely nail it in Water 7.
- Zoro being a schizo with Mihawk as his tulpa felt in-character
- How Sanji was portrayed when Nami got sick was flat-out better than in the manga.
- Inaki's Luffy felt overly animated in earlier episodes of the season due to weird directing choices but he leveled out by time they got to Drum Island. Keep Luffy like this going forward.
- Zoro vs. the 100 assassins at whiskey peak could've been better
- Some of the costuming felt too much like cosplay and not like natural outfits people would wear in this world, I think it had to do with the textures they used trying to be manga-accurate
- The set designs when they were outside in Drum Island and Little Garden looked pretty bad at points, maybe it's just a thing with filming outside locations vs. indoors.
I give S2 an 8.5/10 whereas S1 was 6.5/10. S2 being as good as it was made the flaws of the S1 more apparent.