Thanks for your feedback :) In answer to your questions:
1. You can create custom forms in Vantage, so essentially your listings can contain whatever fields you wish. You can see the custom form builder on the
Vantage admin dashboard demo.
2. Yes, you can offer free listings
3. No, but you can use plugins such as social connect in order to add this functionality if you like. More details about the plugin is on our
recommended plugins page.
4. As per answer .3 this can also be added by way of a plugin, and the one recommended for use with Vantage is ShareThis.
Thanks.