The add-on is a useful extension to the main game Diablo 3, as it not only continues the story, but also brings some novelties, such as the so-called adventure mode. This allows the player to travel freely around the world and to do missions. By concluding five missions the player gets the opportunity to enter so-called Rifts in which the probability of the loot when you kill the opponent is better, increases. There is also a new class, the Crusaders, which, you guessed it, therefore also comes with new skills and Equip.
All in all, a successful extension so that I can recommend to anyone Diablo and Sammelwahn fan;)
PS: I know this review is very much out of order. The reason is that I have played the game more casual and could not deal with each class myself. In addition, I can not judge how the main game looked before the "disappearance" of the auction house and other changes, as I have purchased the game along with this add-on recently. You can indeed discuss in the comments and bring together your thoughts to a rounder review :)