I like the functionalities and the design of this product. Installation of the light unit was easy and quick. However, it was hard to install the bracket for the remote controller due to its design. In my case, I had to detach several things including the grip, the gear controller, and the brake lever from the handle bar, and reassemble them after the installation. It would be much better if the bracket for the remote controller was just like that for the light unit.See full review