Weddingbee boards

Have you seen the Dessy Ballet Flats? They are super cute but I was thinking $28 might be a little high for ballet flats but then again its not bad as far as a wedding shoe goes! And I was thinking of wearing these for the ceremony and reception if I like them. I need flats and they look like they have a nice stretch to them and I was too worried about other flats that might be too tight and give me blisters on my heel. I would love to know if anyone has bought them and how they are. Im a shoe size 11. Thanks

http://www.dessy.com/accessories/Duchess-Bridesmaid-Ballet-Flat