I am 5'4" with average sized legs. The boot itself is very cute, but I found the steepness to be uncomfortable.  There is space between the boot and the arch of your foot which you should be able to fix with arch support.  Another issue (the main reason I returned it right away) is the fact that the boot rested right in the middle of me knee, much higher than I thought.  It zipped up easily and was roomy enough to fit over jeans but I would never be able to walk around in them for longer than 20 mins between the length and the shape it makes your foot.