I've had the Griffin Elevator for a week or a week and a half and love it. I liked the look of the mstand but since it didn't have the arms like the griffin does it didn't seem like it would allow more air circulation, which is (or should be) a benefit to having a stand. It does allow you access to the power button... maybe fad meant the button to open the lid?? Or meant another stand? I read that the mstand's little lip at the bottom doesnt get in the way of the superdrive or the whatchamacallit that detects the remote, but it does cover the button to open the computer so you'd have to slide it back or lift it up to open it.... or not close it.
I really like the griffin elevator. I actually got it new off ebay for $30 shipped so it definitely fit my budget. Plus it matches the computer perfectly and does it's job with a minimum of material. It lifts the screen up to a perfect height. One thing I have noticed is it's a little shakey. When I touch the computer it seems to wobble just a bit. Also, it comes disassembled, and while it's not hard to put together, it's not a super secure connection, the two stand pieces slide into the clear attaching piece but they don't have any way of fully sticking in there so when I move the stand I have to grab it from the bottom clear piece and be careful not to let the arms come out.