This is my first pair of shape-ups.  They are wonderful.  I have arthritis in my toes and plantar fasciatis and these are super comfy.  I do a brisk walk twice a day and these are the only shoes in which my feet don't hurt.  I highly recommend them and they look nice too, not like big Frankenstein shoes, like I was afraid they would look.  I think these are true to size.  I wear a size 11 womens.