I got mine with the bumper at launch but then got the ifrogz case because I really wanted the back protected. I'm not really liking the added bulk so I'm going to stick to with the bumper with limited protection. I never really used any cases for my older iPhones anyways but this bumper is a must for me if I want to make reliable calls since I'm a lefty. The Griffin reveal looks really nice but I'm hearing that the clear backing can affect the way you take pictures with flash on. EDIT: I just bought the Wrapsol Ultra 4 and applied everything but the front screen protector. The film for the sides addresses the call issues I had but there's a ton of bubbles on the back. Applying screen protectors isn't hard but you really need to be careful and do it right the first time. I actually don't think screen protectors for iPhones are necessary anyways because it won't help you if the iPhone is dropped with sudden impact (landing directly on the front or back) and shatters the screen. There's already special coating that makes it hard to scratch under normal use anyways
For anyone using a full body protection shield that also includes the sides then I'd advise against applying the side films if you want to use your iPhone with a bumper or another case.