I had a basic Geodosy, an original Road Angel, now I'm running an Origin B2.
I like the Origin because:
1. It has a seperate aerial, so the unit doesn't have to be mounted on the dash or screen.
2. It has a plug in Radar detector (might soon be illegal, but I don't care) Not all units allow for this because of the impending cahnge in the law.
But the connectors on the cradle have played up - Origin replaced it, no quibble.
Tell you what, I've got a spare one if you want! PM me.