I have been using Waze while commuting for the past 6 months. I don't really need it to direct me to where I'm going. It is more to help me make a choice of route to avoid backups. I find that it is generally correct about the quickest way to go, taking into account accidents, construction and general traffic flow. However, if I disagree and go a different back road based on my many years of experience going to and from Hartford, it quickly adjusts to the new route. I also like that it talks to me, so I don't have to look at it while I am driving.