This show has definitely filled the void left by Game of Thrones. This may not be same for all. But if you understand and enjoy how these worlds (GoT, LOTR) this is the show. You might want to gather some information and set some background of The Witcher world just so that you don't miss out on whats happening. As some times a whole mini story is told in a scene with a simple dialogue. You actually dont have to read all the books. There are heaps of online articles you can read with (no spoilers) to bring u up to speed.