With its satellite features - XM radio, traffic and weather - the Zumo 665 seems to be in a class of its own. But research on the internet, including ADVRider; suggests that there may be quality issues. However, in the finest of Shakespearean traditions - 'the evil men do lives after them, the good is oft interred with the bones' - people are quick to publish their gripes, while one assumes that there must be many 665 users who are quite content with the performance of their unit and we rarely hear from them. As I am about to order my unit, I thought I would round off my research by conducting a simple poll of users. There are only two possible answers to the question, so thou shalt not perch on the fence! Please note: this is not about HOW the unit works, but rather about IF it works as it should. Over to my fellow inmates!