Idea Validation: Automated Feedback tool for freelancers

How many freelancers would use or pay for a simple tool that automated customer satisfaction surveys? This could be used for any type of freelance work. You'd set it up once and then every time you finish a job, a simple survey would be sent to your customer to gather feedback.

Its a way to automate a time-consuming job that we should all be doing in our professional lives in order to quickly and efficiently improve our skills and services.