Game is awesome to play together story is good and moira side story dlc and little miss side story mission definitely earns their respect in my eyes.

Pros:
-Good athmosphere to go in the night together with your character
-Good wide range zombie and other infected models(including all kinds)
-Unique gameplay system in dlc side stories
-Perfect challange for skilled players with extra "invisible enemy mode", etc. (see spoiler pros/cons)
-Raid mode(multiplayer) unlockables throughout the story mode
-Totally customised and specialised character specs in raid mode(also limited on story mode)
-Totally customisable weapons stats in raid mode along with weapon levels and part upgrades(no weapon level and no part upgrade system in story mode)

Cons:
-Has compability problems like a ported game from a console causing lags and freezes(fixable through options ini file)
-Raid mode musics get annoying and doesn't get you in a good athmosphere to go thru
-No "actual" story in Raid mode
-Has some ridiculous achievements that can be blocked in your one run just because you used your other character in story mode(in second run you have second chance its not blocked forever)
-Dlc side stories are too short to get enough of it :)

Spoiler part from now on:

Pros:
-Has secret difficulties in both story mode and Raid mode(its almost impossible to go alone in Raid mode on secret difficulty)

Cons:
-Have to grind for hours and hours for one not that good item, its almost impossible to grind good level parts so your grinds will be for parts and levelling them up