This is the best case I have used on the iPhone, and I have used them ALL. I have had it on since they released the case (not sure about the exact date, but I ordered as soon as it was available on Amazon) and it came priority mail 2 days later. The case held up extremely well imo. Don't really understand the criticism, but I will adress them:
1. Rattling: I am an extremely OCD person and return products for the smallest problems. Do the buttons on this case "rattle"? No. Do they make a noise if you tap them trying to make a noise, or if you shake your phone violently? Yes. The buttons are hard plastic with a metal coating on the ext, and will make a noise if you do the aforementioned since they are not TPU and have no padding underneath (provides for EXCELLENT tactile feedback btw). The rattling camera on my iphone 3GS bothered me a lot, and this never bothers me. I use my phone every day, and it never "rattles" unless I intentionally try to make noises with the buttons. No sounds but a dampened woosh if I place the phone on a table.
2. Scratches on the back and grease: The back is not any more prone to scratches or grease than any other phone. However, I feel that since the material is a matte finish with a softer finish, it may show grease a SLIGHTLY more than anything similarly constructed and colored. Moreso than the Belkin Candy Sheer, but not by much. AGAIN: NEVER bothers me in day-to-day use. You have to hold it up to a light and at an angle, and if you are doing this, I don't know what is wrong with you. I lay my phone flat on its back when not in my hand, and I never notice the back. Any phone is prone to scratches, including the Candy Shell by Speck. That thing was a disaster after a month, and this phone has maybe a hairline scratch if at that. If you clean it with alcohol, it goes away.
3. Everything else: held up VERY well. No complaints, and looks like new. No problems from Spigen's end on construction.
I would buy it again, and again. Still haven't seen anything close to it in terms of fit, finish, button feedback, looks, quality, (no loose edges), etc. The new Apple case is tempting, but the Spigen still looks better imo (especially the metallic buttons vs. teh leather dimples).
If anyone has problems getting any, I still have 2-3 left. I am keeping one as a spare for myself. PM for details. (No, I am not a professional retailer. Just trying to help out if there is a problem with Spigen). Otherwise I am keeping these for family and friends.
*Sorry if the pics aren't detailed enough. But that is pretty much how it looks up close in real life. I only have my GF's Note II, and I used HDR mode. Couldn't find a macro.