Thoughtful, compact design, including built-in handle and cable wrap-arounds, sets this device apart from competitors. However, overall build quality feels downmarket.
When I first purchased this booster it's charge level indicator light worked fine. However, when I push the red button the red light on the far left lights up. When "charging," the far red light is on. I just put it on the charger it periodically for the recommended 12 hours and put it back in the car.