The one I saw the GM the big one I think, it's a good size, not huge but just right. I think I will go with the GM I just like the way it's bigger and drop quite nicely on your shoulder.
I loved the perforatted suede GM. I tried the yellow and brown, both are gorgeous, IMO. They will not rip, it is not thin. I have the fleurs in brown it does collect lint, at the end of day I pick them off. I would not get it if it is a main bag for you. I would get it if you change your bags regularly.