With my time on the game finished and 100% of the base game achieved, I can say that while my opinion of the title per se is positive, the disastrous port is enough to bring the whole value of the game down as if you can't enjoy it well, you can't enjoy it.

The story, while not reaching the heights of other games in the Mafia series, is really well written. I enjoyed the historical point of view and level of detail in showcasing a 1968 post-Jim Crow era, right during the Civil Rights movement. The way the game's world showcases this era of perpetuated systemic racism and inequality, laying the groundwork for the civil rights struggles that would later follow is nothing short of gamified education, not unlike the early Assasin's Creeds trying to fit their narratives to real history.
Then again, this is nothing new, as Mafia has always excelled at this.
From the radio discussion topics and tracks to the lingo and period cars, these games have always teleported their players into the past, and so has the latest installment.

The open world, while not new to the series, suffers from a lack of variety in its activities. Collectibles are most of the contents, with new additions on top of the staples of the series like the Playboy magazines collectibles, and side missions which are just busywork fetch quests. Another great note about the game is how immersive the world is.

That said, the PC version comes with a LOT of problems that have never been fixed. The title performs very poorly, especially considering the year it came out and the quality of the graphics themselves. The game looks extra blurry because of the TAA implementation, so much so that setting it at low makes the game look its best. Sadly, even when set to low, on restart it will return to high again, so you must change it each time you boot the game. For a relatively new game weighing so much on a disk, considering the quality of textures even at max, it indicates that on top of being poorly optimized the game is also poorly compressed.
The rain VFX, where normally it would reach the ground and splash, does so in the sky on the skybox. Lastly, the enemy AI while not the worst sometimes goes crazy and just starts driving in circles, or won't hide behind corners, etc.

The worst offenders to me are the DLCs, which I would love to talk about, especially after buying them years after. As expected, though, the side quest bug from the original game affects these as well, having the NPCs that start the DLC inside the geometry of the game, and, being unable to interact with them to start, I'm unable to play the DLCs.
Love that for me.

It's been years since this game even released a patch or fixed issues, and they had the audacity to rename it to Definitive Edition, although nothing changed and no patch came out for it except a small update for the crappy launcher.
At the time of writing, this was my hardware when playing the game. I'm including it as a reference point to get an idea of how the game might run on your machine.

CPU: AMD FX-8350
GPU: Nvidia GTX 970
RAM: 8GB
Running on an SSD.
It ran at 1080p 40fps, 60 only when in really empty areas.

5/10