Story: 7.5/10
It's hard to talk about the story without spoiling, so instead I'll just comment on it, the animeplanet synposis is pretty fine. Denpa Teki na Kanojo has two sides, the male fantasy of a competent, interesting and pretty female servant with a side of younger sister and a dark horror story. However as in animes like Higurashi no Naku Koro ni, it managed to appeal to the two greatest and most cliche obsessions of men, in short, women and violence. This anime could also be described as a harem of sorts, the overall message here is that Denpa Teki na Kanojo was designed for adolecent males such as myself and it was designed well.
I am often able to see straight through these kind of tactics, I get offended like this anime is just for profit and i'm being manipulated. Like the people who made this have no passion for anime or story telling in general and etc. However despite seeing straight through this anime very quickly, I still enjoyed it, in the same way I enjoyed Higurashi no Naku Koro Ni. That is to say that my enjoyment didn't simply come from an appreciation of it's masterful tactics to seduce men into watching it, rather I became engrossed into the story enough so that I forgot about it after a while and just watched. Whether that's because I was also seduced masterfully by their manipulation or because the anime redeems itself through captivating story lines and impressive follow up with execution, I will leave for a girl to decide.
I would like to say more but commenting directly on the story would be hard as I would probably spoil, I can't even explain why without spoiling so I'll stop writing..
Animation: 7/10
The animation was a little strange, perhaps this is what it means for an anime to have a low budget? I'm not sure, but I got the feeling that this was the anime version of those low budget American movies, and what always suffers for that most is the technology required to make it look like the more expensive ones. However in some ways, it was less distracting. I think the animation helped to make the world more believable, there was no "girl constantly bashing up the boy" or any of those comedic cliches of anime. Higurashi is yet again something i'm going to bring up, as they did many of these cliches and I felt that while Higurashi didn't suffer from it too greatly, I prefered Denpa Teki na Kanojo's less.. surreal depiction of cuteness, violence and their characters, and this mentality was definitely shown in the animation.
Sound: X/10, 4/5
I don't remember the OST, it was probably good but I can't find it on youtube and that's as far as I am going to look. However the ED was good and had no complaints about the voice acting.
Characters: 8.5/10
An extremely difficult section to rate for me, much like the story line, the characters in this anime are very cliche in the sense that they appeal to an overused virtue. However they didn't really need to be anything more and what they were was enough. Out of all the sections, Characters is the one that I hav always rated the lowest, I think that's true of all stories that I read/watch. It's just difficult to make truly interesting and unique characters. However what made animes like Death Note and Toradora! possibly my two favourite animes is that the characters in all their complexity, stayed true to themselves. This anime, I felt, accomplished that. I think that it's shortness really helped in this, but that's not a reason to rate it down. Some anime don't know when to quit, even Death Note is somewhat guilty of that.
ToraDora! also, suffered parts which could have gone faster and etc. I felt that Denpa teki na Kanojo was very precise in it's creation, it's characters benefited from the pace. Interesting characters weren't given time to become uninteresting, characters with one or two interesting ideas in a long anime are boring and plain. Characters with one or two interesting ideas in a 2 episode anime are spectacular, I'll say it once more. None of these characters would survive the test of time, but in the time they were given, I enjoyed learning their stories and about who they were, what they felt and thought, and so on.
Overall: 8/10
I talked a lot about the construction of the anime but not the anime itself, in my reviews I often carelessly and cruelly spoil the story of the animes I disliked. In turn, I tried my best not to spoil an anime I really liked.
I think this anime cleverly quit while they were ahead, I believe more episodes of this anime would have killed it, perhaps not 2-3 more but a series of like 12-13 episodes would have gotten really old, really quickly.. perhaps their creativity would run short or.. well lots of things could have gone wrong. However as this anime stands, For more experienced viewers, this isn't unique but it is worth watching, I really enjoyed it and I can't stress enough how important it is that it's only 2 episodes, animes like School Days could learn a lot from this anime. However for less experienced viewers, this anime will probably blow your mind, have fun.