[Galaxy S III Accessories] secondskin:
I purchased the Rokform smoke colored case for my S3 mainly because of the cool bike mount option. I found the case on eBay for $29.95 plus free shipping and the bike mount for $49.99 on Amazon. The case on Rokform's site is $45 and the bike mount $69.

After receiving the case and mount my impressions are as follows. The inside of the case has no foam or padding to protect the back of the phone. In my experience this ultimately means that the battery case will show signs of wear over time. While this not may be a big deal to some (you can get a new back cover easily enough), I found it less than desirable to not have any sort of inner cushioning. The front edges of the case sit fairly flush with the screen which for those of you who like a minimalist case may appreciate however I did not. While there is still somewhat of an edge and maybe even enough for a drop I wasn't reassured. I'm somewhat biased though because I'm currently using an Otterbox Defender and while bulky the edges around the front of the screen are pretty deep this helps to shields the screen from impact minus a direct hit from a sharp object pointed at the screen. I also didn't like the edges around the camera and speaker not being deep enough, again compared to an Otterbox in which the case gives some depth so that both the camera lens and speaker aren't as easily damaged. Also while the attachment opening in the back is nice to use with their Remote Mounting System, this leaves a big hole when the phone isn't attached to anything allowing for debris to get into the phone. Basically, I feel that this is a overpriced plastic case that's advertised as polycarbonate to make is sound cooler than what it is. In actuality I'm not convinced that it could handle a direct fall on asphalt without the bottom falling off and the phone falling out.

Now on to the bike mount. This on the other hand is solid quality and between the twist lock of the Remote Mounting System and the magnet the phone really isn't going anywhere. I didn't actually test it out but could immediately tell the design was really made quite well. If you don't believe it check out some of the youtube videos and you will see.

The plus side of this case is that it's very slim and does have a ton of mounting features compared to what's out there. Unfortunately, I want the mounting options of this phone with the security of my Otterbox.

Oh and for those inquiring about NFC, it definitely works if you're using an NFC sticker. In fact NFC stickers work through my Otterbox Defender. But, I don't know any place around me that accepts NFC payments or if they do I haven't found them so I can't attest to that.

P.S. If there's anyone reading this that wants ideas for an excellent bike mount, I came up with a great combination of parts through Ram-Mount. It isn't there standard bike mount setup because that didn't look sturdy enough to me so I found my own combination which I've tested through some hard road bicycle rides while hitting some several bumps and have not had my phone move an inch. I can take some pictures of it and list the parts used if any of you are into that sort of thing.