Heres some quick shots of SA Green Lantern
Plain black cardboard cover much like SA Justice League.
The paper feels a lot thinner than SA Justice League, even feels ever so slightly thinner than the paper in recent Marvel omnis, so be warned about that.
The glued binding that I had previously mentioned.
Dosn't affect readability much, you don't lose anything in the gutters, the colours are bright and vibrant and something that's done here but not in SA Justice League is the addition of the issue number in the footer of the left hand page which is a nice value add.
A picture of all the SA and Omnis (and GA superman) side-by-side