Used to have a road angel, which was easy to use, and great if you strayed ( by accident of course ) over the speed limit, as when coming up on speed cameras, the border of the screen would be green if you were within, and red if you were over the speed limit.
I do know have a tomtom one, but only besause the first one got stolen whilst 15 feet from vehicle
and got a good deal on this one.
Nice to use, but my only criticism is the speed indicater on the screen is a tad on the small side. Yes, I know it will go red, if over, but nowhere as noticable as the road angel.