The front "camera" is slightly more sensitive as in official wiimote. For example the pointer moves a bit faster with same movement when holding side by side with official. This does not affect to game play since every game compensates the movement problems. Also the speaker sound and rumble is bit different.
The nunchuk controller is not that glossy plastic as official but it looks and works just same. The cord is same length. The strap is black and the rubber jacket are ok.
I highly recommend this for low cost option for kids breaking them often or cheap extra controllers for quests coming to play to your place.