I can say about the CP-323 nothing bad, have already bought the shell to launch the N97 and after more than 2 months in use is still personally noticed no criticism. The shell has a very good fit, the phone is in it sure it does not fall out and even with one hand you can remove the phone from the case because on the side opposite the opening two "holes" are by one push out the cell phone can. Carrying the phone very happy always in your pocket with the cover and am really