One of the greatest games I have played in years!
When I started the playthrough I was reluctant to the time I was gonna spend in the game, since it's a story driven game with a lot of potions and decotations to craft, but after completing the first playthrough I was in haw at how good it feels to play it.
It has a great story, characters, costumazation, crafting, mechanics and exploration (open world), not to metion all the creatures from the witcher lore.
The soundtrack is another great complemet to your playthrough, such great music for every interection and battles.
The two DLC's are a great addition aswell to the game, showing more items, creatures and interesting characters that just embelish the main game.

9/10 would recomend.

* I give 9 just because of a bug that crashes the game when playing out the cutscenes sometimes.
To prevent this you only need to open the user.settings file in your Witcher 3 folder in the 'Documents' Folder and change the Movie Framerate from 30 to 60 (ex: movie framerate = 60) and save the changes.
(For more detailed instructions check videos in youtube)