Until I see one in the flesh obviously I cannot be sure, but certainly from every photograph, the unit looks like it has been constructed using the cheapest plastics known to mankind, and the metalwork on the back looks completely shoddy at best.
Like I say however, this is only speculation based on their own photographs of their own product. But nothing so far has made me think "wow, this looks good quality".
I also don't expect many owners of said £600 purchase to then go online and start mouthing off about how awfully built they are, of course they will be singing praises to make their purchase look as good as it possibly can be.
Also, Windows CE sucks, hard.