as the title of this review suggests, you cant fault its design as a case. it looks good and its hardy but it has a BIG fault that isn't obvious at first. When you call someone, or vice versa, 90% of the time the person on the other end hears a long rebound of their voice. You, on the other hand, are oblivious to this until it is pointed out. Once you take the case off the line goes as it should be. How this flaw slipped through otterbox's tests i do not know.
it seems to be only the Galaxy S2 that is affected by this as all other otterbox cases i have had were fantastic. ive heard of people cutting squares into their otterbox case, near to the camera to alleviate the problem, but i wasnt prepared to do that with mine.
I still use my case when im in work as i dont make calls there, only text and use the internet whilst on designated breaks.