All things considered, this is more than watchable. It has a simple idea, a simple set and it executes it without too much hassle.
I didn't really get on board with any sense of drama and/or nervous tension, and I was unable to commit myself to the characters. Finding a lot of the acting a touch wooden with predictable scripting, although this may have been an intentional 'cheesy humour', I couldn't quite tell ! There was one character who didn't have many lines but was playing a 'thug/heavy' role, and in response to some techno babble asked for it to be dumbed down ... I did laugh out loud!
However, I am glad I watched to the end as there was an unexpected twist!