This cover is perfectly designed for the Nokia X2, designed around the camera lens and with vents for the speakers, usb, headphone and charger connectors. You can access the controls on the side (media keys, camera etc) while the cover is on. You will however have to remove the cover to access the Micro SD card.
It's worth being aware that this doesn't fully cover the front of the phone - it's more wrapped around the edges at the front. This means that the screen & keypad aren't covered by this item.
This cover does give the phone a more protected and comfortable feel, and I'm very happy with it.