It is an interesting device, I think mainly for monitoring the parked car and having evidence in case of an accident, rather than for driver assistance while driving, where it can perhaps become a distraction. The size is not tiny, it can be noticeable on the windshield and be annoying or even, in countries other than Japan, where we have a lot of petty crime, including drug use, attracting a prankster capable of breaking a window. Otherwise it is certainly interesting, as is Yumigon-chan's sports car and her indifferent attitude 🙂