The computer is easy to use, assemble and also keeps its promises. Minus points: - 1.When display the average speed he has too high a tolerance range. I drive an average speed of 25 km / h there so it shows me 24 to 26 kilometers; at whether I'm faster or slower than the average speed. I find a tolerance range of 2 km / h too much. My old computer purchased at a discount store was already in the tenth area if I go faster or slower than the average speed. - 2. When attaching the bracket, the computer locks a little too loose. I fear that the sometime jump me when driving out of the holder.