It was OK when the games were a bit smaller (and also makes more sense when played in the right order).
Going from 1 to 2 was a huge improvement, as 1 felt more like a tech demo. Then they added two more 2’s, and frankly they were the exact same.
3 was a bit shit, and lost the city charm. It doesn’t really work in the countryside.
Black Flag was massively popular at the time, because the pirate ship stuff was cool, and it also featured the least amount of Assassin’s Creed gameplay. I think the more recent games still haven’t matched that feel with any of the ship gameplay.
Unity shoehorned in multiplayer, and managed to annoy both single player fans (who don’t want multiplayer) and multiplayer fans (because there’s like 4 missions you can do in co-op).
I didn’t play Syndicate because I was bored to fucking death of AC by this point.
Origins tried turning it into a massive RPG, with levels and choices that don’t really do anything, and stopped assassinations from actually being a guaranteed kill if your stats weren’t high enough.
Odyssey did more of the same, added the boat back in, and made the whole game ridiculously big. Like, there’s good stuff in there (the Minotaur tourist trap is a favourite, along with some of the fantasy elements), but you’ve genuinely seen most of the gameplay the game has to offer before you’ve even got off Tutorial Island. It doesn’t even really get harder. There’s just more of it. It was in serious need of an editor to bring it down to about a third of the size.
I’m still so burnt out on finishing that like 3 years ago, that I’ve not played Valhalla either.