Concept is good and I think it is definitely useful.
1) The interface should guide you through the process of creating a search and adding item. Maybe do that if they don't have any saved searches.
2) You should be able to add comments for each item
1) The interface should guide you through the process of creating a search and adding item. Maybe do that if they don't have any saved searches.
2) You should be able to add comments for each item
by comments, do you mean a description for each field in a search? or a comment field for each item?