Where do I start.
I originally didn't know about the Witcher before this game. I got behind the hype of it before release and went all out with the collectors edition for the PS4.
I took my time with the original story, definitely some tears when i finished it, i grew so attached to all the main characters. It was a rollacoaster, some many awesome moments.
I then got the amazing DLC that many companies would sell as their own game, (maybe not heart of stone but that still was great and added some great end game stuff).
Then i got it on PC, and boy does this game look amazing in 4K high settings, and runs so smoothly. I'm just about to finish my first 100% run including all the DLC before i move on to New Game Plus on Death March!.

As i continue to come back to this gem of a game, and enjoy every minute i play, either doing quests or just exporting the world.
I am so happy i got into this game as well, as it entered me into an amazing universe, the books are amazing, the other games are great and the new TV show is so good.
Keen to see where CD Projekt Red take this franchise in the future.

I would recommend this game to anyone and I always do, I think this game is one of the best games to ever come out and still one of my favourites.
bring on the future of more games, and the contiune support for the Witcher 3 with the upgrade version soon.

Edit,
How did i forget about Gwent, What an amazing card game and such a good game that came with the witcher 3 as extra, I love doin all the quests and collecting the cards, its so enjoyable and a blast to relax with.
Also some other things, the quests in this game story and side are great. Admittedly some of them get repetitive and board but other side quests are longer and have more depth then some of the story missions, or a few of them together would make a great game alone. The characters are great and easy to fall in love with. This is so much more I could say and will probably continue to say overtime with more edits. This game is worth full price, that for sure I paid full price for this game 3 time and one discount, PS4, Steam, GOG and the Switch, (PS the switch version might not be amazing but it is a great companion game to play this on the go.)

In Short:
Story - Long, amazing, in depth and so much fun.
Side Quests - Some gems that are a blast, some meme ones, some different ones and repetitive ones. Over all a lot of fun
Characters - Easy to fall in over with, great writing and wonderful design.
Music - Some of the best music in any game, great atmosphere
Design - Beautiful, feels like i have been taken into the world
DLC - Heart of stone, a lot of fun, a bit shorted but still a solid DLC and nearly its own game with a lot of new content. Blood and Wine, could be its own game, huge new area, great way to end of the series, a lot fun, great characters and you get a house.

Overall - 9.5-10/10 a few little problems but nothing major or big enough not to deserve a 10 but nothing is perfect. Would recommend to anyone.

TLDR - GO BUY THIS GOD-LIKE GAME