Review on Whimsical by Tim Evans

This was my first time using any of the Whimsical products and I had a great experience. I used the Free version to collaborate with another developer about a project I am currently working on. It works really well and the UI is simple and intuitive. For example, I could send them files with images attached directly from email, which made collaborating really easy. A few times it didn't work because they were experiencing an issue with the server, however after contacting customer support, all issues resolved quickly. They responded within 30 minutes! Also very helpful when you run into problems - there's always someone available at your convenience via phone or chat if needed.