I have read to chapter 66(most recent chapter, when I wrote the review).
I would rate this story as good and I like it, because I was immediately immersed in the story and read all available chapters in one sitting.
What i liked:
+ The MC's class that provided a well balanced amount of crafting and fighting ability
+ The MC's character: I liked how well he accepted his class, being introvert, capable, how he healed with the apocalypse and that he has no delusional desire for a harem and being king.
+ The described world
As the story has not ended yet and is not really far into the plot(I guess), this is not a negative point, but what I hope to still appear in the story:
The title of the story is a blacksmith in the apocalypse. I don't feel that the story has gone into details about the apocalypse. So I hope that in the future, the MC will return to his world and we can really see and experience the apocalypse that happened.