I enjoyed it just fine. I enjoy open-worldish-rpg-y games.
I think Odyssey refined the mechanics better, but Origins was still enjoyable. One the post-main DLCs I particularly liked (which is rare for me).
I did not/do not enjoy in the least the modern-day story detours nonsense; I just sort of think of them as commercial breaks that I go get some water during and pay no attention to.
People who didn’t like Ubisoft’s turn towards RPG/open-world elements seem to have a more negative opinion of the game, I think.