Instruct: Classify Amazon reviews into positive or negative sentiment
Query: GPS not reliable

When I first purchased this item, I loved it. There were a few times the GPS led me astray, but generally, it really helped me get from place to place in my job. It helped my find places where I did not know where they were, or helped my find short cuts from place to place. However, soon after I got it, it quit "acquiring satellites". It would try and try to find satellites (even though it showed them on one of the screens). Most often it would never find the satellites, or if it did, it was about the time I arrived at my location. The GPS had trouble no matter what location I was in, whether rural or city. I sent it in for repair, and from what I can tell of the paper I received when it was returned (which was very vague)to me, they replaced it. Unfortunatly, it is still doing the same thing. It is a great data management system, however, and I love that it interfaces with "Word". The GBS is a big disappointment. It's overpriced for what it can truly provide.