I previously owned an otterbox case for my old 3gs and was pleased with the product so decided to stick with the brand when upgrading to my iphone 4. I have given the commuter case a go and have not been disappointed. The screen protector is superb and easy to apply, the rubber base layer is an excellent fit and provides some added cushioning whilst the external shell is tough and fits like a glove.
The case doesn't alter the slick shape of the phone and provides excellent protection. Overall very pleased!