This was great I really don't get the negativity.
It has a compelling If unoriginal plot and adds a lot of development to our main character.
I mean it's different from The precios episodes but that doesn't make It bad, in fact that's what a lot of series lack, variety and more episodical adventures, a time for our characters to get into little slices of adventure as a breather from The main plot, this one does that while It brings More layers to our protagonist.
Besides this Is not a Cartoon storyline, as some say, it actually draws inspiration from Seven Samurai, one of the greatest films of all time.
One flaw I could give It to It Is that the plot Is kind of rushed and maybe It could've taken a little More Time, I mean yeah, the conflict gets solved way too fast, but hey at least It does It well (unlike the next episode).