I got mine today, I really like it. No more zipping and unzipping a sleeve case, and now I can get a good angle to use the pen with! The quality is impressive on the leather version I got.
Edit with another day of experience:
Good: in the reclining "on-screen keyboard" setting, it's very comfortable to use the tablet while sitting on the floor with legs crossed.
Bad: the kickstand sock it uses to attach to the tablet makes the keyboard pop off if you try to fold it around back for tablet mode. Also, the case is rather bulky when folded several times for tablet mode, and it takes some fiddling to get it folded flattish.
Bottom line: it still rocks for the reasons I gave, but it does make the device more awkward to use as a plain tablet since the kb falls off and there's all this folded case on the back.