I just got back from SYD. I had a G aisle in E+ going there and a D aisle in E+ coming back. I was quite comfortable with my brookstone seat cushion and nobody next to me.
There is a box at your feat but its really not a problem. I'm tall and I didn't find it to be an issue at all.
The loads were high on both of my flights (June 4th and June 11th)- nobody was getting entire rows to themselves.