I love these boots but am worried about the heel. Comfort is really important to me as I stand for a lot of the day and walk quite a bit. Does anyone have any experience of this type of heel please? Or any thoughts? [[http://www.amazon.co.uk/Hard-Hearted-Harlot-Womens-Beth/dp/B005030Z1G/ref=sr_1_8?ie=UTF8&qid=1325576521&sr=8-8 link]]