DO watch if you like slow gentle ambience type smouldering, English style, home/found footage type stuff (over done these days but I like the way it's used here), with some class performances put in by the main actors who all understate things to good and I found powerful effect. Put to a really atmospheric score too.
DONT watch if you want action/gore/zombie madness. This film is about loss and I like the indie-feel way it's done. Class act.