I really like this bike computer it's easier to read than the Cateye types I've owned. I like the way gives a full description on the display eg Total Mileage etc on the large screen unlike the Cateye. You can also input your total mileage and time if you wanted from your previous bike computer. The only thing I found until now that let's it down is there's no auto start so if your out on a bike ride and stop for a drink, you have to press to restart when you resume your ride unlike the wired version that I read auto starts.
Sigma is a good make and worth the extra cost over some other makes I have tried. However, the instruction sheet did not exactly correspond with this model (e.g. I failed to find the SCAN mode) also the rubber band to hold the transmitter to the fork was too short for the fork diameter of the particular bike (Kalkhoff electric).
Does the Job as described, nice large clear display. I have had several Sigma Computers on cycles over the years. The Mount for the Fork-leg doesn't fit the shape of a Carbon Road fork leg that well. Note: The supplied Spoke Magnet doesn't suit flat type spokes, so swapped with training bike magnet.