The longer I play the more I tend to say that it is somewhere between good and very good. It has some minor flaws that just don't let me say it's excellent.
Crafting and collecting stuff is chaotic, gameplay is average at it's best but for the most part pretty annoying with all it's flaws. A lot of lifeless copy &paste villages after the 'magic' of the first hours is gone.
The rest is pretty good though: an okay main story, excellent side stories, great characters and dialogues and Gwent is just perfect. Skellige is just awesome and same goes for some other regions - especially with the right weather on your side ;3
(Z->)90°-(E-N²W)90°t=1