Having owned one of these watches for several years, I find that it provides all the necessary tools for casual everyday living.  The controls are simple, so setting it with the switch from standard to daylight savings time is no problem.  As a runner, I wear it to time my circuits.  It's great as an alarm watch, awaking me every morning.  The display has nice large numbers, a calendar feature, and a manual backlight.  The band will wear out before the battery, so there's no worry of ever changing the battery (10-year life).  My guess is that one of these will last at least three to five years, depending on how hard the wearer is on a band.