Instruct: Classify Amazon reviews into positive or negative sentiment
Query: How To Increase Its Value

With TOPO, it makes a big difference if you copy the maps from the CDs to your hard drive. That results in a much faster and better experience. Directions for copying the maps to your hard drive are on the Topo web site. Some reviewers do not realize that.The digital maps are an extremely good value compared to paper maps!! Live Map Updates is a feature of version 4. You can download the current maps and street overlays for the quads you are interested in! And that is free.I have used versions 2, 3, and 4 of this product. Version 2 was excellent. Versions 3 and 4 are incremental improvements. On Amazon, it isn't always clear which version you are buying. Go by the dates -- version 4 was released in 2006.The software is excellent. My only complaint is that it is a bit complicated to install. I don't think it has ever crashed on me. I use it a lot, and discover new features all the time. It is not hard to learn. GPS support is great, in my experience.