I can't imagine how the last 2 notches can work well for anyone. Unless you just set it there and don't really touch or move it, otherwise it slides down. The first notch works well because it has the weight and leverage to where the slit doesn't need to be that deep. The other two aren't deep enough to accommodate for the angle of the iPad. They work ok if you don't touch it, but not that great. I looked at all of the 7 at my local Best Buy and they were the same.
I decided that I really like this case and am not willing to part with it, so I did a little mod of my own. Now the iPad doesn't budge.
Found a strip of pleather and used just enough to give the iPad support while leaning on any edge. It really doesn't need to go along the entire edge (I didn't have enough material to do that anyway lol)
Not something everyone will want to do but it was easy enough and now this case is even more stable in horizontal viewing and I can type in the last notch without it moving even a little.
I like tweaking things.
*also it doesn't affect closing in any way.