Story/Characters:
The story for freezing is set in a semi-futuristic world where humanity is under threat by inter-dementonal aliens called Nova and young girls; augmented with superpowers named Pandora are tasked with fighting them (Read the synopsis).
Freezing from the very get go has a pretty solid concept and story with a few sci-fi things sprinkled here and there and enough lore to flesh things out and in fact the story is probably one of this anime's strong points, but if only it could focus on that all the time. This anime; being included as Ecchi has it's fair share of fan service and occasional female nudity, I'm just letting you know so this doesn't come as a surprise.
Despite all of that the story alone still holds it's own with some consistent action sequences featuring some pandora vs pandora combat. It's doesn't have the greatest story in the world but this anime defiantly had me watching one episode after the other and I wasn't disappointed.
As for the characters, the characters to some extent were a little weaker than the story but with some exceptions. Kasuya; the leading male protagonist didn't seem all that interesting to me, sure most of the story was seen through his eyes and there were a few things we got to learn about his character and he develops a good working relationship with Satellizer the Female MC but he unfortunately still came off as a little dull to me. Another character that's kind of weak (in writing) was Rana who comes in later in the series, Rana's only real purpose in the story seemed to be to create a love triangle between the main characters and despite proving useful sometimes, this anime really could have done with out her.
To end this section on a good not Satellizer; the Female MC I mentioned before, was probably the best character in the whole series, and that's something I don't say lightly. This character is introduced as a badass with a hard exterior and prefers to have people at arms length. I won't say anything more other than that there is a lot more than what is seen on the surface, which is uncovered over the course of the series.
Art/sound:
The art and animation is another strong point in this anime, the action sequences were really well choreographed and character designs were really good, especially for the female characters.
The music though I don't remember any of the particular tracks from the OST was pretty solid for the most part.
Sub/Dub:
Honestly I wouldn't really suggest one version over the other for this anime, though I will mention that Funimation did a pretty good job with the dub, as for watching it subbed, I had a pretty similar experience with it, so my suggestion would be to go with what ever you feel comfortable with.
Final Verdict:
I'm going to give this a 7 out of 10, this anime isn't perfect with all it's fan service and love triangles but I have to give credit where credit is due and say "hey, this wasn't half bad."
I would almost suggest watching this if you want to see something with fanservice for the sake of watching fan service, that way you also get a good story out of it as well.
