I'm always really skeptical of sites like this, particularly when have they shit like this...
In over 95% of cases, we email our customers CD Key(s) in less than 5 minutes of the order being placed – which is one of the reasons we were voted the UK’s Best Independent Retailer of the year in 2013!*
*Source –UK MCV Awards 2013
If someone does try it, do let us know though as I am interested.
I've just done it got my key and I'm downloading it now, its only the second time I have used this site. The first was when they were selling Devil May Cry for £12.99 too after somebody found the deal and posted it on Giant Bomb http://www.giantbomb.com/dmc-devil-may-cry/3030-32686/forums/1299-for-dmc-steam-key-576962/#39