-If you like your fantasy grim and dark with a touch of Lovecraftian influence, then yes. The world of Grim Dawn is a brutal one and leans more towards low fantasy (e.g., Conan) than high fantasy (e.g., Lord of the Rings). I like low fantasy, so GD's story and sidequests were compelling enough for me to want to finish up the base game and expansions. There are also plenty of lore entries to collect that help flesh out the backstory of the world and its characters.
As I'd mentioned, one of the cool things about Grim Dawn is that there's also a modding community behind it. You can find a variety of mods up on
Nexus Mods. They vary from quality of life, graphics improvements, entirely new classes and skills, and so on. Quality varies, and I'd also recommend playing the full game first at least once to become familiar with it.
Of the mods currently available, one of the best is the
Reign of Terror mod that remakes Diablo 2 in GD's engine. All of D2's classes are available, and you can combine them with any of the existing GD character classes to make your own hybrid D2/GD character if you want. If that interests you, note that this mod does require that you own the DLC.