Fulfills exactly its purpose and also looks good. It prevents the phone from slipping and absorbs shock if heruterfällt (which is difficult to avoid). For HTC One SV absolutely perfect fit. As mentioned earlier increases the force required to operate the buttons, but it works The included screen protector I could, just as with other reviews, not error-free application to the display. Once you remove the release liner can instantly dust particles of air it down, because presumably electrostatically attracted. The film is therefore unusable immediately. Probably you need clean room conditions to install this part. But as free extra, there is no deduction.