Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent unit! Reliable.

I have several GPS receivers, and I recommend this unit above all. If what you want is a reliable gps unit, count on the GPSMap 60CS. I have been in bad weather, under heavy rain and this unit always delivered.I like this unit for its colorful screen, easy to read and many menus. I live in Costa Rica, and I have uploaded all Costa Rica's standard 1:50.000 base maps. The amount of memory is enough, unless you want to upload bigger areas.Most of the time I use it with an external antenna, especially if I'm in the car, so the gps can be anywhere and still receive a good siganl.I use this unit not only for geocaching and driving, but also for working purposes, good and simple data collection, with proper configuration the download of waypoints and POIs is acceptable.Finally, I recommend this unit for the Serious GPS enthusiast or for the hard working geographer whos requirements are meet by this units capabilities (WAAS, waterproof, altimeter, etc).