Gunk on bottom microphone appeared after a few weeks
After breaking my first GS3 due to a slip out of pocket, I decided to protect my next phone with something that could withstand just about anything. Despite mixed experiences with Otterbox, I settled on the Armor series. One thing that immediately pops out is the size; this case will make your phone a brick, and I for one love that. It makes the phone feel more solid, almost doubles the weight, and has a great rubberized grip. The metal latches have a great finish and have a satisfying snap when you seal or unseal them, and the materials used are clearly top-quality.
In terms of actual features, every port and feature is covered with either a layer of plastic (films over the screen, sensors, cameras and flash, with thin film over the front speaker), metal mesh (rear speaker, microphones), or thick rubber (headphone port, charging port, buttons). The entire case has an o-ring around the seam, and both port covers have o-rings as well. I can confirm the case is indeed waterproof, and using it in the shower or at the pool is great fun.
However, there are some large issues that prevent me from recommending this case. For one, the covers over the microphones do greatly inhibit your voice from being heard, and I find myself taking the phone out of the case in order to talk. This also isn't helped by the adhesive used to attach the metal mesh, which became gunked up on both my cases within weeks (both were used in water, this might accelerate this effect). The mesh takes on a perpetually 'moldy' or 'dusty' appearance, and trying to clean this off causes the mesh to slide around.
The largest issue I had, however, is the top latch broke after a few months of use. I had not dropped the case recently, or done anything to it that could be considered stressfull. Upon further inspection, the latch design places a large amount of stress (especially when sealing / unsealing) on a thin section on metal, which I would expect to break rather often. If either latch breaks, the waterproof seal is lost, and there's an annoying piece of metal flapping around. Customer support was extremely helpful with this, shipping a new case within a few days, but I'm not entirely trusting of the hinge design.
Overall, this case is a great concept and made with top-notch quality, but there are some rather large design flaws that were somehow overlooked before production. Even if you just need a really sturdy case and don't care about the voice quality or gunk on the meshes, the issue of poorly-designed latches still stand, and I just can't recommend the case.
Pros: feels solid, almost everything-proof, amazing customer support
Cons: latches may break over time, metal mesh gunks up, call quality is murky at best