Just bought the full fat Talex, on offer in Dixons for £90.
Been out for a drive where i know there are cameras, it picked them all up, but no false alerts for the ones on the other side of the road.
It will have a better test tomorrow going to work.
Also gets recommended in the Auto Express test, and picks up 97% in another test on t'internet.
Another thing, you dont need an extra ariel for it because it doesn't need to pick up radar or laser to work. As long as you position it on the dash under the clear part so its 'looking' at the sky, it will work.