I have one . It Sucks Big Time. I have had 3 cordless computers without any problems. I got the Cateye Cordless and no matter how carefull I am aligning it to the magnet and sensor, Time and time again I look down at the screen to see an obviously inncorrect speed .
5 visits to my bike shop and I have given up. It all works well at the shop but as soon as you are on the road its back to crazy figures and averages.
Stick to Echo cheaper and better.