Played, and finished Necromunda: Hired Gun.
Game is a mixed bag, objectively it ain't that good, but I had a lot of fun anyway.
It's developed by the same people that also created Space Hulk: Deathwing and feels similar in many ways. Keeping in mind that this game is mobility focused I think you get a pretty good idea as to what to expect.
Story doesn't really matter, and is basically wasted potential. The main character is a one-dimensional doofus that, despite being from the Underhive, doesn't seem to understand how things work around there (or "here", I guess).
Game starts off being pretty hard (especially the side missions with their infinite spawns), but it is very easy to max out your bionics rather early on. Weapons and upgrades are a mixed bag, and balance is kind of all over the place. While I'm sure all weapons are "functional" there's also quite a few that just don't work too well, especially later in the game (shotguns, in general, but the two shots from the double barrel especially are problematic given the floods of enemies and its inability to deal effectively with shields)
Gameplay wise offensive mobility is very much crucial, the game seems to push wallrunning but I barely used it (getting that achievement is going to be a chore) since it's kinda jank. The grappling hook, and just jumping all over, on the other hand... As for the "offensive" part, medkits are very limited and can only be stocked prior to the mission, you're supposed to heal using bionics, which only triggers after you have gotten hit yourself (yep, if you're on a sliver of health, out of medkits, have no more shields, and somehow are still alive you really are SOL).
Story missions are quite a bit of fun (except the boss battles, most of those are, ehhhh, but I'm not a big fan of boss battles in general, so ymmv). I especially enjoyed the train mission.
Side missions are a mixed bag, and risk/reward is way off for most of them. I'd imagine many players will quickly decide "Capture" (Domination, for all you UT99 players) missions, aren't worth the frustration, and in general just 'settle' on a set of favourite (or "to avoid") mission types and locations. On the note of locations, secondary missions are set on parts of the main mission maps where the same mission type will always use the same part of a given map. Similarly "secret" chests that contain upgrades are always in the same spots.
The game also has its fair share of bugs, though most qualify as "annoying" rather than "breaking".
The grappling hook is liable to get you stuck in terrain (that said, I've not gotten stuck anywhere in a way that forced a reload). Enemies can also get stuck in terrain, for side missions it doesn't generally matter as more will spawn, for main missions this can block progress (I've had to reload the last mission because of a stuck enemy that I couldn't get to in any way).
When it comes to mission bugs there was only one that I found that is breaking, in the mission with the container puzzle, if you touch the controls "too soon", you break the whole thing and have to reload, that said once you know how it's triggered it is easy to avoid, but yeah, should've been fixed by the devs, really.
"Finishers" don't seem to work reliably (often there's no prompt when there probably should be), maybe there's some hidden cool-down, but it's a good way to get killed for sure. Similarly it seems that the heal-on-damage mechanic doesn't always work reliably, or doesn't heal as much as it should (especially obvious when finishers heal tiny amounts)
There were also some graphical issues, personally I had clipping issues with the armor of my character. Not exactly game breaking, since the game is first person so you only really see it in cutscenes, or loading screens, but when the devs are selling skins that is kinda...hmmmm... (that said, I did scroll through Steam screenshots and saw people using the same skin without issues, so maybe something with my system).
There's also some very underdeveloped systems: side missions are given out by factions that you rank up with, but there doesn't seem to be any real incentive to do so (aside from "for fun", of course). Sure you get a one-time "bonus" reward for maxing out a faction, but that's about it. As a sidenote: you can also gain reputation with factions you're actively fighting, which, errr, doesn't make much sense.
Another thing of note: for some reason it turned on FSR 1.0 by default for me, while my PC can handle the game just fine with everything cranked up without FSR. Took me a little bit before I figured out why things weren't quite as sharp as they probably should be...
I'd probably give it a 6/10. I had a good time, but the game feels very undercooked. Just like Space Hulk: Deathwing, really, there was potential there, but they called it "good enough" way too soon. If you can get it on sale and enjoyed Deathwing and/or WH40k and/or janky shooters you could definitely do worse.