The spec is good, but before you commit yourself make sure that you know who and how you have to return it to if something goes wrong. What do you do if it is dead on arrival? Or failes to boot, or a month after you have bought it you start getting error messages etc. Who fixes it? do you have to pay the shipping both ways to get it fixed under guarantee?
What can you find out about Vibox Ltd? Are they reputable? All I can see is an 0161 number. Are there any reviews on Google? These are the things I would check out before spending my hard earned cash.