Let me start by saying that 95% of the time, I am a flats kind of girl - ballet flats, flat boots, flat sandals, flip flops, and VERY low kitten heels. I really only wear heels for short periods of time and when I have to dress up. I've been looking at these Michael by Michael Kors wedges and I think they are really cute but I'm a bit concerned about the 3 inch wedge. So, my questions are: 1. Do these look comfortable (keeping in mind that I'm used to flats)? 2. Would you consider these to be casual (can I wear them with jeans and basic tanks/ tees)?