I've been wearing this every day for a week. It is my 5th G-Shock. Here are my first impressions. I will update this review later, as I notice more things. (although I already notice a lot, as I'm a watch collector)

+ Bracelet doesn't pull arm hairs. Center links are folded, outer edges are solid; I'm not sure how Casio does this!
+ Bracelet doesn't have a "tail" that comes untucked, like most G-Shocks
+ Solar/Atomic
+ Big main display
+ Useless Time Memo function is replaced by a useful Countdown Timer on this latest model
+ Nice bold, contrasty LCD segments
+ Prominent "radar dish" display at the bottom, to show that the watch radio-sync'd with the atomic clock the previous night.
+ Light button is convenient and serves only that purpose; it is never mixed up with any other button.
+ Bracelet and silver/gray color them dresses up this G-Shock to the point that it can be worn with business casual dress. Finally, I can wear a G-Shock to work, without feeling like some punk kid. ;)
+ Bracelet links are held in place with small spring bars, not friction pins like on most bracelets. This is very nice, as they will never accidentally loosen over time, and all that is needed to size the bracelet is a push pin or a small flat head jeweler's screwdriver. (just take care to trap the open end, so you don't fire it across the room or into your eye)

- Time of day is only displayed on the home screen and alarm screen. It should also be displayed in the bottom of the display for World Time, Stopwatch, and Timer screens, IMO.
- Champaign-colored parts that connect the watch head to the bracelet don't match either part. This is weird, but not a deal-killer for me.
- 'ADJUST' button requires a VERY hard, continued push to work.
- I would like to see the 'return to home' functionality re-introduced into Casio's modern digital watches. The old one, such as the CA53W calculator watch, and the 5600C G-Shock had this feature. How it works is that if one makes a change or uses one of the sub-features (for example, starting the stopwatch) then the next press of the MODE button takes me back to the home screen. This saves a lot of button-pushing! Casio should update the firmware to implement this and the time-of-day feature in future production.