There is no single piece of media that has had more impact on me throughout my life than the Final Fantasy series. I enjoyed the first half or so of 15 so much that I thought for sure it would be my new favorite game of all time. It devolved into such a shit heap that I couldn't even bring myself to play it post updates & DLC. It along with KH3 has left me sour on all of Square's modern releases. I was pleasantly surprised by FF7 Remake and will play FF16 at some point. Even a mediocre Final Fantasy is better than what 15 gave us.
The dlcs in my opinion were great. My PS4 is shit so I haven't played the final dlc but they were a unique experience. But yeah 15 was ... It has good ideas. Also cup noodle.
The Remake is beautiful and isn't a bad game, but every second that I'm playing it I keep asking myself "would I be having more fun playing the original?," and every single time my answer is an immediate "yes."
If they had kept the same gameplay mechanics (yes, including traditional turn-based combat), the Remake might have been my all-time favorite game. As it is, it's just a very pretty shadow of what it could have been.