I've been satisfied with the series for the most part. XV was a mixed bag for me. I really liked the dungeons, fishing minigame, locations (Galdin Quay is so cool), collecting recipes (and those delicious food renders!), and the overall lighthearted vibe of the game. I didn't like the combat, story, or fetch quests. I feel like SE somehow pulled out a good game despite not being able to figure out how to do the story and combat. It was in development hell forever and I think they just decided to finally release it at the expense of those two things. Somehow they made it work and it's a fun game despite those glaring flaws. So, I think they're on the right track, and hopefully XVI will have a smooth development. Really, only one game in the series has been considered a massive disappointment by gamers at large (XIII). They have won back some favor with XV and seem to know what they're doing now.