Good feedback - thanks. I was hoping that by posting to HN I could fill out the FAQ with questions that people may have. I will update the FAQ this week.
I also think it would be nice to have a search/browse page to see more than one favor. I looked for such a feature and of course didn't see it. That way if the current favor isn't my cup of tea, I might find something else that is.
I think this is omitted in spirit of the slow web.
I hope your wife gets better soon! When is her birthday? It would be awesome if she could get her cards exactly on her birthday