Pretty good, but things are still missing.
I have no idea how ti'll continue, but this part was really short and pretty pointless. Nothing really happened in that part: You learned the names of the characters, their behaviors, they build a roofless house and that's it.
The animation was good and the jokes themselves are hilarious (it took me back to my "noob days" in Minecraft) and all of the problems in the game that are seen and mentioned are real once you play Minecraft for the first part.
Yet, this part was pretty empty without too much "things" in it.
Overall I gave 4/5 because the humour itself was sharp and it really reflected the life of Minecraft.
All it needed is more events than just knowing the characters and gathering resources.
I'll check out part 2 later, maybe it'll be better.