Yes it's really that good. Totally revitalized not only the Zelda franchise but also Open world games.
I wouldnt bother much about user score on any gamingsite, since you know.. Trolls are gonna troll. You dont have to like Zelda, heck I am not the biggest fan of the franchise, but dayum.. all them 0's day #1 is just a proof that those either hates Zelda, Nintendo or just wanna show off their low self esteem.