Let's begin with the bad
The worst thing about AgK is the anticlimactic conclusion. I could expand on the absurdity of the anime-original ending and compare it to the manga in terms of character development and story, but it would alienate the anime-only viewers and become a comparison rather than a review.
So aside from a botched ending, the entire anime suffers from under-developed main characters and a lack of purpose from the evil prime minister who is despicable for the sake of being despicable. The show is called Akame ga Kill so you'd expect Akame to be a real standout character right? Wrong! Akame has very little to no depth and gets ridiculously little screentime for a "main character". Although there are hints about her past (maybe the author's way of saying "go read AgK Zero"?). Anyways, the "bad" here is that she wasn't the real main character. That position went to Tatsumi! He's far less interesting than the under-developed supporting characters and I feel the whole series would have been better off without him. That's not to say I hate him, I just feel very indifferent towards him (even his design is bland).
The other major problem are the (frequent) death scenes in the anime. If there is something anime taught me, it's that you don't need a highly developed character to make a death scene emotional. I don't think the issue in AgK was that the supporting character weren't developed enough, but rather the execution of their death's was poorly done. With the exception of a few (I will not spoil who).
So what's good about Akame ga Kill? After all I'm giving it a 7/10 so there are good things I want to point out.
For the most part (original ending excluded), the anime has real good pacing. Things happen chronologically and smoothly enough that you want to watch what happens next. The supporting characters, despite being too numerous to develop, are enjoyable to watch whether it be for their personalities or for their respective imperial arms (some being pretty awesome). This one may be subjective, but Esdeath is a major asset to the anime whether or not you like her. Her introduction propelled the show to higher ground and of all the characters she was by far the most developed. Plus I can't really think of any anime character that is comparable to Esdeath in terms of personality and presence. Lastly, the anime did a great job making the opposing faction "The Jaegers" likeable.
The animation is ok, but could be a lot better. The intense and eye-candy colors almost make up for the animation
The OST is surprisingly good with a handful of them being remarkable: "Yume Monogatari", "I’ve got to go home", "Meeting with Everyone", "Le chant de Roma", "Friend's Feelings"
Akame ga Kill had a lot of potential which fell short. It successfully built up to a climax and then lost the audience. Nonetheless it was a very fun ride with unpredictablility at every corner.
