My RA 2 works fine with warnings, it sounds off at the same time as my TomTom Go500, which has the latest updates from PWGPS.

RA have brought out the Road Angel Navigator 6000, which has all the same things as RA 2 but is also a satnav as well for £249.... for what you would pay for just a RA speed detector, you'd be better to buy the Navigator 6000. http://www.blackspot.com/ Halfords also are selling them for £249.

If you decide on just a Road Angel 2 or Road Angel Plus - get one off eBay. I got my RA 2 off eBay, it's less than 9 months old for £116