I didn't mind the fight against Ganon. I didn't particularly care for the mechanized spider Ganon, but I thought it was a fun battle, especially in Hero Mode where I felt like I had to do more work to keep Ganon from regaining health. And yeah, the giant pig fight was incredibly easy, but that section of the fight seemed to only be included for cinematic purposes, which I'm okay with. Flying up in the air and shooting his eye was dope. I was disappointed with how easy it was to reach the sanctum using the waterfalls. I had no clue there was even an interior because I immediately just rode the waterfalls the entire way up with no challenge.
As for the story, I was disappointed. Though I think that's true of the entire games story, the threat of Calamity Ganon felt so disconnected from the rest of the world. I was hoping for some cutscene in the finale, or a during credits scene (a la Twilight Princess). But nope, you just defeat Ganon and then...its over. Of course, theres the "true ending" which you unlock after getting every memory. But honestly, that ending is just as underwhelming as "Do you remember me?"
It's clear that that true ending was set up for the sequel, which feels just a little bit disappointing. Hopefully BotW2 has a bit more of a satisfying ending.