Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Magellan Roadmates 700 and 800

I own both a Roadmate 700 and a Roadmate 800. I bought the 800 after I had used the 700 for a couple of years and had it in for repairs (it stopped picking up the satellites). Both units have worked well (hence the 4 star rating), but I have been dissatisfied with Magellan's customer service. The customer service center is apparently located in India and some of the folks on the line have limited communications skills in English. One wanted to repeatedly walk me through a diagnostic sequence on the 700 even after we had established that it would not pick up the satellites. That is very aggrevating when you are traveling and the unit is malfunctioning. The Magellan maps tend to be several years old. Even when I purchased and downloaded the upgrade for the 700 the maps were not current.