I switched our MXs to Fortinet, as well. There was a bit of a learning curve, but I'm glad I did change. In two months, I have not had a single issue, particularly with the remote users VPN. I got my work-life balance back in balance. I plan to drop ...

Yes. I need my users that happen to be on IPv6 to connect to our VPN. I have no control over the end user's IP address. But I am losing billable hours when someone cannot work. The lost productivity will make the business case for switching.