This watch has more functions than I can possibly use.  You can read the product description to see all that information.  I merely wanted a watch that is durable, functional, well-built, stylish (at least to me) and value-priced.  This watch meets all those needs.

There is an indiglo backlight with button placed squarely on the front of the watch (just below the dial) for easy access.  You have some options to decide what information gets shown on the main display.  I like being able to see the time, date, and day of week (I always seem to lose track of that).  I've used the stopwatch/lap timer feature a few times.  I don't take it with me when I run, but with a 50-lap timer, it could be useful if my primary running watch ever breaks.  Another feature that is really nice is the ability to turn off the beep.  Most digital watches beep when you switch between modes.  I have a $10 Casio that does this and you can't turn the beep off on that one.  So I am very thankful this watch allows you to disable the beep.

I was a little bit worried about the size of the watch.  It's a little larger than most watches I wear and I was worried it might look too big on my wrist, but it looks fine.  I especially like the reverse display (black dial with light numbers).  I wish they made more watches that way.  I'm not exactly sure how long the watch band will hold up over time.  I've only had it a couple months, but the band feels like average quality, meaning it will likely break well before the watch stops working.  But other than that the build quality feels solid and if it performs as well as my other (non G-Shock) Casios then I expect it to last for a long time.

A few minor gripes - the watch band is excessively long.  I have small/average wrists so the band wraps almost completely around to the other side and sticks out a little bit too much.  The buttons are also recessed into the case a little bit more than I would like, but that's not a huge deal.  There are about 6 different modes, and you have to cycle through all 6 of them to get to any one of them.  It would be nice to be able to set one mode as shortcut and be able to toggle back and forth between that and the main display instead of having to go through all 6 every time.

This watch is pretty inexpensive for a G-Shock, yet it offers most of the same functionality as models costing 3x-4x more.  I'm satisfied that it's well worth the money.