Absolutely amazing. However, this is something to keep in mind. Based as it is on japanese feudal culture, many activities might be considered "slow". However it is very respectful towards japanese culture in general. In my personal opinion it is the best open world game I've ever played, and I've played a good share of them.
how does it compare to Witcher 3? personally I think it wasn't that great.
I like it a lot better than The Witcher 3, when I started playing Wild Hunt I was so excited because I love open world RPGs with moral and decisions making... I got progressively bored with the game...
With GoT tho, I got platinum and I still want to keep playing it.