My wife bought one for me for Fathers Day. It is a good watch and seems to give pretty accurate reading on elevation and compass. I have no idea what the barometer readings mean.
It does have a down side though, it is so shiny that NASA called me while on a hike and asked me to pull my sleeves back down. The reflection was messing with sattelites. Okay, im stretching it a little bit, but it is very shiny!