From what I can see, it's a good effort from a director that doesn't have much under their belt. Definitely, you can see some good story boarding elements as far as being under a budget and his camera work. However, story and the editing somewhat detract. There's quite a few odd cuts. However, it's something they can polish up further along in their career hopefully. Also, I've seen better special effects even at these budget levels.
Overall, zombie apocalypse story, the only spin on it is the positioning and view of the protagonist. There definitely is a ever common family thread in it. However, it is so annoying that it doesn't make any character likeable at all. All seem kind of detached, act on illogical premises. The movie could just be called "Barney", because a kid being the instigator of all the problems and death in the movie seems to be what they had in store. Personally, I found it rather insulting making a kid so dimitted. Also, the way it is framed makes me think none of these people have used firearms before.
I can appreciate the abilities to working with budget constraints, and these film makers actually tell a decent story within those constraints. However, several things pulled me out of the story and I can only attribute it to that. Using odd cuts and foley, where a dark lighting and scuibs or flashing lights would suffice. Some of which aren't all that expensive. The climax of the film is filled with many of these jump quick cuts with little more than exposition.
If you are a lover of low budget movies, then you might able to glean a more enjoyable movie than I can. Overall, I hope all these film makers get more of a chance in the future to polish their craft.