After the massive disappointment of the previous DanMachi season, my expectations going into this third season were rock-bottom. So the fact that it actually manages to advance the shadowy background Guild plotline and recapture some of its earlier momentum came as quite a surprise. Unfortunately… that plotline turned out to be incredibly dumb, executed in the most hamfisted manner possible, and arguably wasn’t even properly resolved.
So I would say the end result is watchable, but only just.
Magatsu Wahrheit Zuerst on the other hand has a well thought-out story with remarkably nuanced characters. Attributes which are particularly impressive considering it’s based on a smartphone game. The problem here, aside from a slow start (a notable contrast to DanMachi III‘s rushed start), is that the end is really the beginning of a story that will almost certainly never be told.
So whether or not its worth watching will depend upon how much you’re willing to weigh the journey over the destination.