The best thing about Bluebook is that it is very easy to use and has a very intuitive interface. The free version is good for small jobs, but the paid version is definitely worth it. I wish that there was a way to create a template for the estimates. I wish that I could use the estimates to create invoices. I wish that I could have a more robust project management system. My company uses Bluebook to create estimates and invoices for our clients. We are able to track our estimates and invoices and have our clients pay us directly from their bank accounts.