Sorry for lack of detail...
Very fun in my opinion! I love classic mythology and this scratches my itch for it. I got to run around ancient Greece and had a good time doing it. I'm a fan of RPGs and somewhat grindy ones at that, but the grind is definitely tolerable. You don't have to replay the same things over and over again, since the world is so big, although you'll be doing similar things. If you're at least somewhat invested in the story, you shouldn't be bothered too much.
I found the DLC to be very enjoyable. As a fan of Assassin's Creed, learning more about the Isu (First Generation) was very interesting. I like how they're incorporating mythology into their own story. While I'm not 100% into the modern day protagonist, Layla, I'm glad that it focuses more on the Animus anyways.
I got the game for about $35 CAD w/all DLC, during a coronavirus/summer sale and it was definitely worth it. I skipped the last couple Assassin's Creeds and played Odyssey before Origins, since I'm more of a fan of Greek mythology, but I'm very excited for it! I know the combat/progression system was expanded on in Odyssey, but I'm definitely excited for Origins, since I much prefer the world and story over the slight changes in gameplay anyway.