Rating:
Pros:
Outdoors decoration
This was very restricted in past games. Even in New Leaf had some limitations in what you could do with your town. New Horizons improves this feature vastly and it's amazing what you can do with your town. Even if you aren't into decorating
Villager interaction
While villager dialogue is less quirky and less involved than in older games, I feel like the villager interaction is overall better. They feel more alive because the actually interact with their environment. Instead of just roaming around aimlessly, they can fish, read a book or visit shops. Overall they feel more fleshed out and more like actual people.
Crafting
I like the crafting feature. While the constantly breaking tool can be annoying, it gives you something to do besides catching bugs and fish. It feels like a natural inclusion and isn't too grind heavy.
Cons:
Update-policy:
I didn't mind this approach at first. Continous updates can provide a great opportunity to keep the game fresh. However, we all soon realized that the updates came at the cost of several key-features like shop-updates, the café or Gyroids that where seemingly deliberately cut from the game, only to be intruced later through updates. I don't think it's entitled to expect these features in the base game and it feels like a cheap cop-out to hold them back to draw out the games lifespan.
Half a year has passed and the updates were a mixture of "new" old features that should have been in from the start (shrubs, Art, Diving), and seasonal content that lost its novelty very quickly. Overall, I am not impressed.
Online-pushiness
Several design-choices feel like the developers deliberately try to push you towards online-interaction: You're limited to 3 of 6 types of fruit unless you trade with someone, when in older games, there were ways to get them all by yourself, DIYs are designed to encourage online-trading, furniture colours are arbitrarily locked to the island and features like Celeste and Redd are so heavily RNG-based, that it might take you 20 years to aquire all the items without help.
Animal Crossing isn't a multiplayer-experience for me like games like Splatoon or Smash Bros. Please stop trying to push a playstyle on me. Especially if it is one that isn't the focus of the series.