Let me start off by stating that, if you do not have a calf that is 15" pass on these Gabriella Rocha Nicole boots. They provide a seriously snug fit and don't have much stretching. Also if noise bothers you, you might not like the fact that there are clicking noises due in large part to the metal on the heel.
The boots are comfortable and if you measure correctly you will have a nice fit that is true to size. Seriously, measure yourself. There have been a large amount of returns on these heels when patrons find out they can't fit their calves, being either to big or too small.