Having just finished Prey and wanting to love it, i'm coming to terms with just liking it instead.
It's a game that's all steak but no sizzle. Everything is perfectly systematic, but there's no high highs. It's an even-steven game all the way through, and it's too easy to fall into a very uniform groove through the entire thing. The game peaks with the Crew Quarters and then settles back into grey corridor crawls and another 7 treks through the Arboretum. Every out of the way cool secret place you find still just has another unexciting weapon upgrade point and pack of shotgun shells. Once you've got the agility upgrades and a couple other basics, most of the neuromod upgrades just seem like things that short-circuit actual analogue gameplay bits (like - you can now hack into something instead of searching for a password. Or now you can lift a heavy thing out of the way instead of finding an alternate route with judicious gloo placement. Or now you can one-shot an enemy instead of using the environment effectively to take it down). Alas, that's often a problem with all immersive sims.
But...
Dishonored 2 is a masterpiece. Amazing level design (and I even think A Crack In the Slab is wildly overrated), cool art design, awesome abilities, and two (times two characters) legitmately fully fleshed out ways to play it, each being super fun and super different experiences (high and low chaos).
D1 has some great levels and feels nice and tight, but it lacks the nonlethal gear and abilities that make one playstyle less fun than the other, and some of the cause and effect stuff isn't as fully fleshed out either.
That said, all Arkane games are great in their own way (Youngblood was a mercenary job, it doesn't count). But Dishonored 2 is easily one of the best games ever (with mouse and keyboard...the controller lag is pretty awful).