FOR NOW, ONLY COMPATIBLE WITH 3 GAMES ...

At present, this product is only compatible with THREE GAME and the number is not going to increase:
Resident Evil: Revelations.
Metal Gear Solid: Snake Eater 3D
Kid Icarus: Uprising + Nintendo 3DS Support

There are currently only five games compatible with this accessory, the last two have not yet release date in France:
Kingdom Hearts 3D: Dream Drop Distance (released in March 2012 JAPAN, France in 2012 ???)
Monster Hunter 3G (to be released in Q4 2012)

This tool provides an analog stick and 3 additional buttons: an R button, which plays the same role as the console and two Zl Zr and buttons that have a similar role to that of the R2 and L2 buttons with a playstation controller.

Resident Evil, this tool provides a definite plus but, in return, significantly increases the weight and the console volume.

Indeed, the Circle Pad is powered by one AAA battery, the location is not very convenient and requires a screwdriver to put in place.

If the volume button, headphone connections and the AC adapter are possible once the bracket mounted on the Circle Pad Pro, that for me Pad Pro has two big flaws. Must uninstall the console to change the game Same to change the Wi-Fi connectivity. In addition to not convenience, facilities / multiple uninstalls may end up posing problems in the binding area (excellent incidentally).

In short, I advise you to try it before you buy it: the latter two defects and the increase in volume will not hinder some, others find these elements prohibitive, especially if they have small hands.

Finally, it is only available in one color: black.

Some will find this essential accessory, others do not have the utility hence my neutral rating.

If you plan to buy it, which is legitimate, do not forget to plan something for the store and protect it.

As for me, I'll wait: it now costs half of a game which is not negligible.

I will amend my review when I have been able to test on other games based on what it will.

PS The circular pad has PEGI rating: 18+. In fact, it is quite obvious that this is the classification of each of the games that should be taken into account.
PP-S. Be careful to check the economic interest before purchasing the Pack: Circular Pad Pro + Resident Evil: Revelations