I have no idea what some people are complaining about. After taking out the back of my Samsung Galaxy S3, I slipped my phone into the case and attached the back of the case to my phone, which effectively clips into your phone so that it acts as a back for the phone. It has a very nice feel to it with nice shiny gloss, very thin case that adds hardly any if at all extra dimensions to the phone with the case attached. The front is fantastic, super light and chrome finish, flips well too. All in all, for £20, it really is a brilliant case and if you have the extra money, why not buy this decent case for it as it looks really nice and classy, fits perfectly, cut down to the exact milimetre and provides the protection needed.
The only slight criticism I would have is that there is no lock for the flip, so for example in your pocket or just laying on a desk it looks perfect and does the job, but if you were unlucky and was to drop the phone with the screen facing down, the flip may fly open and the impact will hit the screen rather than the front of the case. Having a lock would eradicate that problem but all in all, it's a perfect item for a reasonable price. Only thing to do now is get some screen protectors and a stylus :)