i) They loved the idea - first impression: Aww cutee!! (Which is awesome!)
ii) They didn't know what to do with the main page, how to get started - they missed the big orange join now button. Drive the getting started process harder.
iii) Felt confused by so much info about apps and such in the bottom - get them in first then go into benefits. They said you could totally do away with "Why you'll love Moment Garden..." on the main page - they were sold at "Create and Share your Child's Story". Just say how it’s easy and private – sold!
iv) They thought it might be hard to maintain, tell them quickly on main page how it’s easy to keep updated with emailing. Upload a short video maybe?
v) They have already had their kids, and thought "I missed my first child's Moment Garden, so I will start with the next one I guess", if someone ever says I’ll will come back later, they are never coming back, promise! I think this is because you start with conception in your main page image, most parents don't think about this stuff till they have a baby, my suggestion is to start with first steps, so you don't alienate existing parents (many) at the cost of trying to capture future parents (few).
vi) There is totally a need! If you don't succeed it’s your own fault. So never back off! :)
We're working on a few of these now, based on your feedback. Do you mind sending me an email? zack@momentgarden.com