Just sent one! It's a lovely idea. I think most people love getting postcards and the voice message is a nice surprise for the recipient.

Two things.

1) The photo upload gets stuck on loading from the landing page. I think this is due to the file size? I uploaded the same photo from the actual page where you can customize the postcard and I was given a size limit warning.

2) I tried using a non-US address for both the sender and recipient. Both addresses were verified, but on the preview all of the address was omitted except the street number. This could only be a preview issue but I re-added the address in the optional section just to be safe.

Edit: actually a third thing. The non-US address was recognized with the appropriate city but the country still shows United States. My order number is #2CD56A