We've been using ProductLift to organize feature requests and website improvement ideas for our OC Tint Solutions website, and it's made tracking internal suggestions much easier than using spreadsheets. One feature I'd love to see is a way to group feedback by website page (Home, Automotive, Residential, Blog, etc.) so it's easier to prioritize improvements for specific sections of the site. This would be especially useful for service-based businesses that continuously optimize their websites based on customer feedback.