I have owned and used this PDA for six years. It is sortof clunky compared to newer ones but has given fine service. Its 8MB of memory seems to be plenty - it contains my active schedule for the whole of the time I have owned it plus quite a large address list. Battery life (2 AAA's) is reliably a bit over two months (although I don't use the backlight). I'd be lost without this PDA; before I had it, I carried around a Franklin Planner (book). Automatic propagation of repeating appointments and pop-up birthdays, etc. are features that blow away comparison with date-book methods. In addition to stored information, active capabilities like internal date-keeping, calculator, and world-clock make this device an essential part of my daily life.