This film is certainly a breath fresh air in its genre. The execution is very unique for a full movie but even it you disregard that, it can stand on its feet as one of those "small group of people stuck together and they have talk to figure things out" sort of dramas. On the other hand if you expect a serious horror, you might be disappointed. This is about creating tension by exposing secrets at a figurative gunpoint. Not about scary supernatural things or jump scares. In other words the horror is in the theme, not the presentation. If that's what you are after it's as interesting and surprisingly satisfying story.
In terms of technique, the film is presented as Blaire's computer screen and this allows for the kind of multiple media (Skype, YouTube, Facebook, etc) storytelling that's usually limited to alternate reality games. It enables the characters to communicate each other privately which would be impossible if they were physically in the same room. It also means that every time someone is in trouble the helplessness of the others adds to the drama. Not all is perfect though. There are some cringey parts related to the scene, like Ken's anti-Trojan program looked about as authentic as the virus uploader from Independence Day and when you consider that Laura is not really a hacker it makes zero sense to find hundreds of infected files on a damn OSX! The question "what is a troll" and the answers were equally embarrassing in this day and age. The corrupted video compression that plagued the Skype calls served little purpose. It signified nothing and it was way too random. Usually effects like this exist to telegraph some "presence", but here the corruption started way too early. Another downside is that the cinematography was even more non-existent than with the usual found footage films, because it's face-time all the time.
They used an interesting technique to bring in music which is usually absent from found footage: Blaire has a Spotify player running in the background. Unfortunately this excellent idea was way underused and when it was used it was very on-the-nose. If you've ever watched an ARG like EveryMan Hybrid, where (distorted) music is used to communicate subtext or hidden messages you know what a missed opportunity this is!
Overall it's worth a shot. If you only watch films you might even find this ground breaking. But let me assure you - there is nothing here that hasn't been thoroughly explored by various web series you can find freely. Sadly this movie is another instance of old media trying to play catch-up with new media and not quite getting it.
