Alright, as promised here are my thoughts on the main quest of the game now that I've finished it. I'll be as spoiler free as possible and won't be talking details just my feelings. To start with, HOLY SHIT what an amazing ride, this game just confirmed to me that it is GOAT tier. The main quest is spectacular and satisfying by the end with several different endings. As I mentioned earlier unlike many of you I haven't done everything in the game, I still took things slowly but when I got overlevelled for a main story point I usually went back and did the mission. The main thing I do in games like this is role play so if the main quest suddenly calls for urgency I try not to twiddle my thumbs exploring ruins when I should be doing X now. Thankfully, the main plot doesn't call for such immediate urgency most of the time.
Unlike say Inquisition's story, TW3's main plot justifies all your exploring since for a large chunk it is an investigation. You're looking for Ciri so traveling all around Velen and talking to a bunch of villagers in the middle of nowhere makes sense. You aren't immediately trying to stop the end of the world so that gathering 5 herbs for a villager seems out of place. I will say that things do pick up later but even then the story allowed justification for just screwing around.
Before I discuss my thoughts on the ending of this wild ride I thought I'd point some stuff out to fellow players who might want to know just when there are near the end. All I will say is that you will KNOW you are basically about to start the final quest. There are certain parts in the game where you think this must be the end only for the game's plot to keep going and open up once again, but you'll know once you're about to finally be near the end. Curiously, the game does not actually warn you about this as it does with an earlier main quest which leads you to think back then you are approaching the end.
Any who back to the main story, it truly is wonderful and emotional all the way to the end and your choices actually lead to several different ending outcomes and scenes. BioWare now you must take note on how to end a series and incorporate choices with actual consequences as TW3 just nailed it. That said, I will say that the choices you made in TW2 as well as TW1 don't really seem to matter much at all. For example, I'll just say this since it's not really a spoiler to say something is not in the game, as far as I know Iorveth is not in TW3 nor is he ever mentioned. Now, maybe I'm wrong and he's hiding somewhere I haven't looked but that seems unlikely, he's just not there. In addition, in my play time I never heard mention of Saskia, the free Pontar Valley, or most of what occurred in TW2. I'm kinda surprised that Geralt never once asks about any of this. Also, in TW1 I had Radovid marry Princess Adda yet there is no mention of her that I found in TW3. Basically, outside of a few short mentions and character pop ups here and there your choices in the previous games don't have much weight in TW3, the game was clearly designed to be sorta stand alone.
That said, the choices you do make in this game do affect the ending of the game. I won't spoil anything but the ending you get is not determined by some R/G/B choice or any other binary choice given at the near end of the game, instead your ending is based upon a culmination of choices (both minor and big) you made throughout the game, this includes certain side quests. I will say that the ending I got was very satisfying. My only complaint is that certain plot threads are not resolved at the end of the game and certain character fates not fully mentioned despite the game leading you to believe there would be some conclusion to some of them. I will also say that the story is very much a personal/emotional story and less so about "plot" or lore, which is frustrating at certain parts when characters start talking deep lore that even someone like me who has read the books and played the previous games doesn't fully understand what is going on.
All in all it was an unforgettable experience and I look forward to possible future Witcher games and anything else CDPR does. Closing thoughts:
-The action cutscenes are fucking insane in this game, whoever choreographed and animated that shit needs to stand up and take a bow. Wow.
-Boss fights are really great, it's nice to see an RPG do actual boss fights right.
-Charles Dance's performance is great, I love the Nilfgaardian accent he puts on.
-Yennefer all the way, sorry Triss you never stood a chance.