+ 2 new game modes; Sniper Assassin and Ghost mode. Sniper Assassin is a fairly simple mode where the goal is to kill 18 targets in a level, completing challenges to boost your score multiplier. It can be played solo or with 1 other player. Ghost mode is similar to the Escalation mode from Hitman 2016, but now has another player in a separate game-world competing against you, with some ways you can sabotage each-other throughout the match.
+ Solid new levels with plenty of new and unique ways to assassinate your targets.
+ The legacy pack; a great idea I'd like to see implemented in more sequels.
+ Vastly improved sound; Gunshots sound fantastic and NPCs now have location-appropriate accents.
+ New difficulty settings; Casual, Professional, and Master.
+ Loads of replay value; whether it's discovering everything in a level or completing all the challenges and achievements, there's a lot to sink your teeth into if you enjoy that sort of thing.
+ Great sense of humor. A little subjective, yeah, but I think people who enjoy darker and irreverent deadpan humor will get a kick out of a lot of the dialogue and scenarios you can create.
+ Smooth gameplay. Agent 47 has an almost Terminator-like way of moving, and yet he still feels smooth to control and move around.

- Very little gameplay innovation, with plenty of gameplay issues from Hitman 2016 still present and a frustrating lack of common-sense mechanics. There are many actions in the game that would be helpful or make sense to be able to do, but you just can't. The most obvious one would be how you're now able to hide weapons and items within suitcases, but not disguises. (A suitcase that can't carry suits?) I understand that it could result in making the game much much easier, but I feel like this could of been counter-balanced by making it so bulkier disguises (like mascot outfits) can't be fit into the case, as well as having conditions that could ruin certain disguises; like getting wet/muddy while wearing a suit or killing someone with a knife and getting blood on your outfit. Maybe even some more comedic things like stepping in dogsh*t or hiding in a dumpster for too long and having the smell stick to you.
- Saving and loading is very slow to do, a quicksave/quickload button on the pause menu would of been helpful.
- Very sparse story with a cliffhanger ending; this isn't really a deal-breaker for a Hitman game, but it's definitely still an issue worth mentioning.
- Lower quality cinematic cutscenes. This isn't a huge problem, but considering the last game had fully animated ones it just seems a bit strange to switch to what are essentially dramatic slide-shows.
- Expensive Season Pass. Maybe 40USD, I live in Australia so see for yourself. (it's 60AUD here, though I got it with the gold edition.)

(platform specific)
- (XBOX/PS4) - No way to change your controls in the options, except for basic sensitivity sliders.
- (PS4) No platinum trophy on PS4; very strange not to have one, and as someone who likes getting achievements in games I find it pretty disappointing.
- (XBOX/PS4) I've had multiple crashes on PS4, and from what I've seen online it seems to also be an issue on Xbox One.
- (PC) I've heard from many people that the PC version has some serious issues, especially with performance. I haven't played it on PC so I can't say for sure, so make sure to do some research about it if you plan to buy it on PC.
- (All) Many people have reported issues with obtaining the legacy pack, with different issues and solutions for different systems. I personally had an issue getting it on PS4, but it seemed to fix itself after restarting my console.