As a business customer you can 

• design an invitation with your own choice of colours and photos.
• use the budgetplan to organize your event.
• let the guest see gift wishes, guestlist, list of tasks, photos and links.
• automatically see all registrations on your invitation.
• attach documents.
• send new message to the guest via e-mail.  
• let the guests communicate via e-mail.
• add or change the contents.
• change your invitaton to a letter of thanks after your event.
• invite guest without an e-mailaddress (read more under Help).
• make an agenda or use the agenda as a list of tasks.
• add company logo.