Despite how controversial Stormblood is/was...
I will say that the adventures of the Warrior of Light, Lyse, and Alisaie were really fun and great. I enjoyed talking to them between missions and events. The group just had such great synergy and banter.
All the trouble and mischief they got into is great. Then there was all of them getting annoyed at everyone telling them "no" and figuring out ways to get them to actually fight for their freedom. Usually through trickery.
Don't get me wrong, I enjoyed the adventures in Heavensward but that was extremely serious most of the time. So the adventures in Stormblood were a nice change due to being much more light hearted in nature.