Cheapest Motorola MOTONAV TN20 3.5-Inch Portable GPS Navigator with Text-to-Speech

The unit I got didn't work properly. On a 21 mile trip it would only give me street directions when there's a FWY ramp just four blocks from my house. There were so many little streets I got dizzy. I decided to take the FWY after all, at which point it got lost and told me I was on a street I've never heard of. Finally I think it recognize the FWY I was in (or maybe not) because on every ramp I pass it kept telling me to exit, all this while the map got stuck and kept going over and over the sames streets I had gone by like 5 miles ago.
Aside from that trip I tested on trips to local stores I usually go to. Not happy with the results there either, it got lost when I turn onto a major Blvd told me I was on a whole different street.
Not happy with this unit, so it's going back.Get more detail about Motorola MOTONAV TN20 3.5-Inch Portable GPS Navigator with Text-to-Speech.