Well looking at that it looks as though it is in a similar vein to many of the other Chinese made squonkers, buy it as if you are buying an enclosure and be prepared to upgrade the contacts and 510.
Just out of idle curiosity, I wonder if we will soon see empty 3D printed squonk enclosures for sale on UK sites? I have absolutely no idea how much it would cost to produce one, but with 3D printers becoming affordable enough for people to have at home I'm sure someone will spot a hole in the market.