It's overly complicated and ugly. I was going to use it as a way for clients to review and mark on PDFs, but it was way too complicated and ugly. I tried to shut down my account as much as possible, but they still send my a lot of emails.
Response from WebProof:
02 November 2016 at 05:23
Dear Les. I'm sorry we didn't get the opportunity to help you get started with WebProof. We offer free one to one personalized online demonstrations, as well as instant chat and email support, so we make sure to get each user smoothly onboarded. You reached out to us, wishing to unsubscribe and we did that immediately, hence no further contact or communication was made after that point in time. We're proud of 50,000 users from 100 countries approving more than 5 million pages in WebProof, and we would love to see you onboard too. In case you change your mind, you are always welcome back to WebProof :-)