AC Valhalla. This ain't your Daddy's Assassin Creed:
Visuals: A+. The visuals are gorgeous, breathtaking. It is a fantasy gamer dream come to. You're roaming across the rugged landscape of North-East England, when you come across the crumbling ruins of some ancient castle, streaks of lightning forking over head. The landscape is so beautiful and so vast you could spend hours getting lost in it.
Story: A+. is the story that good? It isn't Faulkner, but it still pretty decent, but the thing is there SO much of it. I'm 8 weekends in and I'd say I'm only 75% or so through the entire story. It just makes the game feel meaty and interesting, and again, something you could get lost in.
Cutscenes: A. This is perhaps the biggest improvement in this game from past ACs. While the cutscenes are not visual masterpieces, they are nonetheless clean and competent, with short load times. They are no longer detract from the game like in previous ACs (for example Origins where the cutscenes were really annoying).
Open World:A-. When you need a break from the intensity of the main story, you are free to amble across the glorious English landscape, checking out World Events, exploring ancient ruins, raiding bandit camps, hunting wild animals for furs, or finding a good fishing spot. The contrast between the intensity of the main story and the relaxed nature of open world exploration is what really makes AC Valhalla a lot of fun. I give it an A- though because there are a few bugs here and there (forgivable considering the giant size of the game).
Skill Tree / Abilities: B-. The game's only serious drawback. The skill tree is huge, there are numerous skills to pick from, but ultimately I would say only 25% are interesting. The bottom 25% are downright unnecessary (for example, "autoloot" -- why would you spend your hard earned skill points on something like that?). The ability tree is much smaller, but again, here we see a lot of imbalance: we see one ability that is literally "godlike" (you'll find out which one soon enough -- hint: its an archery ability), there are some other very good ones sprinkled in there, and then the rest are just kind of "meh". When designing a game, devs ideally should aim to make the player "godlike" by endgame. They should have struggle in the beginning, improve but still struggle by the middle of the game, and then dominate in god-like fashion toward the end. Unfortunately in AC Valhalla, you're pretty good by endgame, but not unstoppable the way you are in, say, Fallout 4 or Diablo 3. Not a dealbreaker, but it could have been better.
In sum, AC Valhalla is more of an experience than a game. Highly recommended.