Surprisingly comfortable these Guess high heels are true to size and have a great fit for your feet. They are over 3" high but they don't actually feel that high at all.
However you do need to practice even if you regularly wear high heels. Due to the thinness of the heels you can quickly find yourself on the floor if your not careful.
While I liked them and their fit some have complained that their toes hurt and that you shouldn't wear them if you have to stand for long periods of time. I think it's because of wider feet. If your feet are wide try to order the shoes 1/2 size larger than what you normally wear.