Yesterday I had the chance to watch the first 13 episodes of "Attack on Titan" and I suppose it speaks well of the show that I could not un-glue myself from the screen until I had seen every single episode considering how grim the show is. The more Japanese anime I watch the more I realize how deep their grasp of human psychology is. AoT takes it time to explore every facet of a given story, something that surprised me a bit considering how TV shows these days are more concise and to the point, particularly when they have a running time of 20-40 minutes.
When I was first introduced to Eren Jaeger I thought the attack on Shiganshina would be over and done with in that episode with the following one taking place a few years later and showing us an older Eren who had trained to become a soldier. I could not have been more utterly wrong. AoT keeps time skips to a bare minimum while favouring a more day-to-day approach of the lives of Eren, Armin, and Mikasa. As a result, the pacing is a lot slower than I'm used to but no less captivating.
Like I said before, AoT takes a lot of time to explore the thoughts and feelings of a plethora of characters beyond the main three. In fact, given how much screentime each character gets for their own story arcs you'd be hard pressed to identify the leads. It's to the show's credit that even characters who may initially come across as villainous experience profound growth. Jean Kirstein comes to mind, once a violent young man who joined for selfish reasons but later faced a crucible in battle against the Titans and overcame his fears to lead his team mates to safety. Even then his arc doesn't stop as he is left wondering how many deaths his orders caused, beginning to grasp the burden of command.
There is a lot of death in this show, and frankly much more gruesome than I have a mind to watch. The show bombards you again and again with images of the grinning Titans munching on the, often living, bodies of civilians and soldiers alike, limbs flying here and there, all undoubtedly in an effort to let the despair and hopelessness they're feeling sink in. It works, to be sure, but I could use less of it.
As for the main characters, at least Eren and Mikasa appear to be strongly stereotypical if what little I've watched of anime is any guide. Eren is impulsive and rash, often unable to control his anger and lashing out at other people when they broach a subject he feels strongly about. His obsession with killing the Titans is decidedly unhealthy, if understandable, and will not help him control that anger anytime soon. Of course, it's this anger that drives him to action when fear paralyses the rest of his comrades but it also lead to the reckless endangerment and subsequent death of his team-mates in his first encounter with the Titans. I do hope he learns to get hold of himself because I can only suffer his angry routine for so long. Some of the secondary characters had better arcs and more growth in a single episode than he did in the first 13.
Mikasa is perfect. No, seriously, there's an episode where their training sergeant assesses each trainee's strengths and weaknesses and all he has to say about Mikasa is that she's flawless in anything she does. Really? Is that the best they could come up with? Was it too much to ask to give her a flaw so she could experience some growth as well? I suppose one could say her weakness is her attachment to Eren and there is an episode where she refuses to give in to the Titans because of him, turning her weakness into a strength. Unlike Eren, she's always cool, calm and collected, not to mention deadly with those blades she wields. Unfortunately, this degree of detachment carries into her relationship with others. For instance, there's this scene where Eren is yelling at his best friend Armin and Mikasa decides the best way to defuse this conflict is to punch him! Seriously? How about placing your hand on his shoulder and asking him to calm down for starters? Even among friends, but particularly when addressing Eren, she almost always adopts a condescendingly logical tone that prevents me from being too involved with her character as she doesn't show a lot of emotion.
Armin fares the better of the three, seeing himself as a burden at first but eventually gaining enough confidence to show his skills as a shrewd tactician. This confidence, boosted by the support and trust of both Eren and Mikasa, gives him the strength to overcome his fears and even venture into the field of battle on his own to rescue Eren in more than one occasion.
I'm uncertain whether to finish watching the remaining episodes of AoT. Not so much for the blood and gore and despair, for if it gets too heavy I can always tune out, but because the few Japanese anime shows I've seen always end in a cliffhanger and never get another season to wrap things up, getting me invested and, ultimately, disappointed.
I'd love to hear your thoughts on the show and, why not, a few recommendations. 
EDIT: It was thoughtless (THOUGHTLESS!) of me to forget about the wonderful music and animation but I have come to expect nothing less from Japanese anime. The drawing and colour palettes are absolutely wonderful and the action never once disappoints. My favourite moments are always when they're flying through the city with their cables. They're unbelievably fast with those things!