I purchased these, and the Michael Kors MK Flex Open Toe in Black Patent and the Michael Kors York Platform in Black Patent. All a size 7.5 medium. I couldn't even get the MK Flex Open Toe on my foot and the York Platform was uncomfortable and squished my toes. The Calvin Klein Kail Platform was comfortable out of the box. All I did was add the back of heel cushion to each shoe (which I do to most my heels). My toes weren't squished and they were comfortable to walk in. Now, I use them basically to drive, walk from the car to my destination and stand around in and talk for like an hour. No complaints. So if you're using these to commute in, or walk far I can not say if they are comfortable but for my purposes they were. And they look nice on.