Not my favorite within the franchise, basically the black sheep really; It's better to buy a key of Hitman 1 (If your PC can handle the god-awful unoptimized performance) or Blood Money, all of the "replay value" comes down to challenges or the contracts mode, which shutdown years back, only accessible via community made patches/emulators that bring it to a proper state. The DLCs for the game have been removed from the store because those were contract exclusives (and also Square Enix), only way to have said DLCs is buying the 'Elite Edition' on keysites. I was not hooked in the story, as the characters are almost poorly written with useless agendas and motives to their names, did not enjoy it. I managed to 100% this game and it already made me as miserable as the average hitman player.

Yes, it's now possible to 100% the game. Just visit the GitHub link below.
https://github.com/LennardF1989/Hitman-5-Server/releases/

tldr: Absolute pass. Servers been shutdown by Square Enix, meaning multiplayer achievements are unobtainable unless you use a server emulator. Play the newer installments instead.