Got my Otterbox Commuter today. I finally found a case I'm 100% happy with. I've tried the Seidio w/ Kickstand (silicone was lose and the kickstand felt cheap), the Samsung flip cover (didn't like the lack of protection for sides), a few TPU cases (they were ok), and the Speck Candyshell (like everyone said the back starts to scratch immediately).
The Otterbox is slightly larger than the Speck but not really noticeable. Case fits the phone like a glove. Silicone feels much better than the Seidio. S-pen is easily removable. Case feels much more protective than the TPU cases I tried. Hard plastic makes it easily removable from my pocket without the easily scratch-able plastic the Speck case had. So far I have not found a downside to the case. If you have used a Commuter case in the past you know what you are getting.
In addition for those that were wondering the Commuter comes with 2 screen protectors, 1 for the International version and 1 for the AT&T version. However, I can't comment on quality since my Boxwave Crystal is working fine.