I think this boot is attractive.  I bought a 10W.  I am an Australian 9 to a 9.5 and usually buy wide but not always depending on the shoe.  These are a size too big and too wide in the heel area.  I would buy the 9 medium next time.  My foot measures 10.25 inches long.  Even with an innersole and thick thermal socks these are much too big.  I think they would be more comfortable if they fit properly but I find that my toes get achy from the slight raised up toe in these shoes.  They were very easy for me to zip up over straight leg jeans and I can even tuck any baggy pants in there and I have a 16.5 inch calf and there is plenty of room even over jeans.  Without jeans I can squeeze my hand into the back of the boot then ball my fist as the elastic gives.  But they don't look baggy because the elastic bounces back.  Perfect for bigger calves.

They are not super sleek so have a bit of extra crease around the ankle but I think they look really nice and the sleek style boots are very constricting anyway for me.  I can comfortably flex and roll my ankles in these while sitting and they allow comfortable movement.  I recommend these but if your Australian buy your normal size not American sizing