I lost 13 euros

100% plastic, which gives lightness certainly (I still prefer a certain weight) but very low quality appearance. Ergonomics is very average, the keys are nice and the little SIZE DEFAULT MAIN offended that my patience is the right joystick which controls the functions that the SAME right keys (a shot down corresponds to X, a right to O etc ...). The company offers a medium update crap that does not work, the problem seems impossible to solve.
Impossible to play properly in games type football, basketball, fight, shoot or requiring a precision in the controls.
Point more still: the length of the wire.
In short: very convenient to play Tetris, otherwise I recommend the official controller of the Xbox 360, more ergonomic and reliable.