Not very handy with the current line-up of available games. You are better off investing in the second controller before picking one of these up. In future, when more titles are available, this will be handy

While this item isn't necessary to get the most out of the move, it is definitely worthwhile. If you don't have a Navigation controller, in it's place you need to hold the left half of the Dualshock 3 controller in your left hand, and with its weight, it feels very awkward.

This, however fits very nicely, and feels very natural, definitely worth the extra if you're planning to get a Move.

Playstation Move is … Incredible! I preordered this the second a price was up, and now I have it I am amazed at all the functions it has, and can do. I cannot wait for more games to come out for Move like Killzone 3 and Socom 4, when I can really use the Navigation controller to its full potential.

The navigation controller feels very slick in your hand, while maintaining a good weight. The button layout isn't too busy and includes all the buttons one should need.

Overall, a very good buy (cheapest here, at MightyApe) and a fine addition to the other Move controller. Thanks MightyApe!!!