I bought this same time that my case Galaxy S3 mini. I find it really very ergonomic, especially because you can call while having the case closed, so no case that "hangs" during the call, but also because the lack of scratch or other system closure makes it quick opening.
By cons, after a month of use, the case already has a small crack on the side. For now, the crack will not grow and is not a problem, but ... It is therefore quite fragile. Amazon Fortunately we offer a great rate!