Hi - thank you for your question to me. My first question back to you would be in relation to the items you are writing about. What types or products do you showcase? Its all about research and accuracy I believe. If its clothing, add measurements. If its antiques or furniture for example you need to add as much detail as possible including era, damage, specifics.
Searches on eBay are generally conducted via the title only....unless the user selects title and description therefore title descriptions are really key.