The best thing about rainbow is its easy to use interface for both clients as well admin side of things which makes my life easier when dealing with multiple projects at once! I wish there were more options available under "Customers" tab such an ability to filter by type (such as booking only or billing). Also would love if we could have some sort of discount codes/coupons for new users who sign up through us but then never actually make any sales using our platform - this way they get their money back after 30 days without having made a sale. We are solving problems related to time management and communication between agencies / partners involved in project execution and also providing them one stop shop solution for managing customer relationships.