I have an i-Blason case for mine.
Looks like a standard book style case... has little corner covers to hold the N7... a magnetic power switch thingy (auto power off/on when opening/closing), and it pops off one side for "theater-mode".
All in all, I really like this case.
Pros:
Secure clasps. Holds it tight, can't fall open.
All plugs and controls easily accessible.
Came with a useless stylus... and a loop to attach it to the case on the opening side. Handy for a real pen.
Faux leather. Looks nice.
I do have a few complaints, though.
No portrait stand. Thought I wouldn't care about this missing... boy was I wrong.
Tiny little set of 5 holes for each speaker. It *does* muffle it a little bit.
Don't know if wireless charging will work in this case... yet another thing I didn't think would matter.
Faux leather is far cheaper than I thought. One 2 foot slide/drop skinned the corner of the case... need some fabric glue to fix it...
My Nexus 7 seems to run hotter in this case. I now regularly remove it from the case to let it cool off.
Maybe all in my head, but wifi seems weaker in this case...?
I have owned this case since March... about 2 weeks after I got my N7.