This system gives something entirely new to your experience. While the wrist rumbler is a pretty common feature on consoles these days ever since Nintendo introduced the rumble pak on the n64, it is used differently, the combination of the fans and the lights along with it bring something different to games.
I play a lot of PC Games and i bought Quake4 when it came out as its the latest in a legendary line of games. And if im honest, didn't really enjoy it a great deal. Combine it with ambx though and i really did. The little rumble when you jump, the big rumble when an explosion goes off near you, the lights going mental when you fire at people, the fans going on when you get the backwash from a rocket or you're going fast in a vehicle really do make it a great deal of fun! It does the same with a variety of other games too, UT2004 (I do really enjoy that game) and Call of Duty 4 being my favourites.
Also the fact that Phillips have made sure you can control the lights and fans while not playing a game is so useful, just having the fans on helps me so much while at the computer. My room is boiling and the fans actually make it bearable! And the lights are just generally really pretty and everyone loves them when they come in.
The speakers are also really good, sound quality is very good, they're ridiculously loud if you want them to be and the subwoofer is massive, so for people who want a speaker set they're good enough, let alone the rest of the stuff you get with it!
Couple of drawbacks, it has a limited set of games it is compatible with. Also £170 is a lot of money, even if you are getting a lot for it.
All in all i love ambx, it adds something new to my gaming which is definitely a very very good thing, plus gives me a set of fans, some really pretty lights (I've researched this, to get something similar to the lights seperately would set you back almost as much as the entire ambx system) and some great speakers. I'm gonna be using it during a house party as playing music (On wmp) with it does kinda make it look like you're at a disco. Which is actually awesome :D