Well, I will try to do a precis my personal impression, which is allmost the same like the ppl b4 me, told you.

I am really sorry, that I havent read the reviews before and my punishment for this, will be disgusting and gross pictures in my head, which will torture me untill I die one day. =.=°
So, I hope for you guys, that you will read everything before downloading. I was frustrated, because all my dear animes are completed or have broken up and so I was searching for some new stuff.
Well, ... even if the story sounds kind of interesting, I realized its lame from the beginning till the end. Even Highschool of death wasn't so disgusting with all the zombies creeping everybody out. And you hear enough about the characters to know them.
But here it's a disaster.
Computeranimated and of high quality is no excuse for SUCH DISGUSTING/GROSS/ABHORREND UGLY and deformed shit in the truest sense of the word!
And I don't thing, that it makes any scenes, when an immun girl at the end of the film says, that she is used to the smell(?) // STENCH!!!! xO // by now and smiles.
Hallo?! This anime is sick! really sick and even the hentai/ecchi parts in this movie dont pull the movie out of the entirely shit, you get through by watching. This only one peaceful bathroom scene isn't worth to watch the complete movie.

So: Please be warned and DONT make the mistake to ignore the reviews like i did, just to give this THING(?) a try. U would regret it for the rest of your life and I'm NOT JOKING!
If a few of you guys have the same excellent capacity for remembering movies, there will not even Alzheimer help you out.
Well... I go now and play "DOTZ!" to get these fucked up pictures out of my head. ~.~

(DOTZ is a german acronym for "dagegen dotzen" a belittled verb that we use when someones head smash against a realy hard thing: Wall, table, chair, bottle, etc.
So the goal of the game is to hit/smash the own head against a thing of your free choice and to hit the thing harder with every following hit against you head until you have enough. @~@
Wish me the best to get the shit out of my head. >.<||| And thanks for reading.) (show less)

I read other dudes review about Gyo before I watched the movie. Now I didn't have to shower but this movie was pretty out there. Don't wanna spoil anything for anyone elses viewing pleasure but you will end up deleting this after you watch it honestly and then want that hour of your time back.
Story; Slow and slightly interesting but to many loose ends at the end nothing is really even summed up or confirmed, its just left hanging with multiple possibilities.
Characters; Now I did like that everyone looked natural no crazy eye/hair colors as for each personality no one minus the 2 main people had any real relevance to the story itself other than to show the "infection" progress.
Animation; Decent enough I would say half cgi/half drawn which is fine I agree with squad14capitain drawing swarms would be a bitch and you couldn't pay me enough to get carpel tunnel syndrome with this movie
Entertainment; At best something to play in the background and troll the hell out of
and last but not least Dialogue; It fell short with anyone but the 2 main protagonists everyone else was just wasting air and roaming aimlessly...
Over all this movie was a waste and no I wouldn't recommend anyone to watch this unless they wanna troll some shit but low budget zombie flicks are even better than this but meh to each their own (show less)