with regards to the decision you have to make about fremium/premium etc there is one thing I think you need to consider that I can't see anybody else here has mentioned.
If a whole family sign up to your site and like it enough to use it they will probably become long term users. After all it would be a pain in the ass for them to try and collectively move to another service.
With this in mind, if you go the premium route, it may be in your interests to consider offering a more substantial sign-up discount - a 21 day free trial wouldn't excite me to try out your product.
Good luck in any case and keep HN up to date with how you guys are doing :)
If a whole family sign up to your site and like it enough to use it they will probably become long term users. After all it would be a pain in the ass for them to try and collectively move to another service.
With this in mind, if you go the premium route, it may be in your interests to consider offering a more substantial sign-up discount - a 21 day free trial wouldn't excite me to try out your product.
Good luck in any case and keep HN up to date with how you guys are doing :)