We will go to 7.0.1 when that maintenance release comes out. I was hoping the ftnt demo FGT200E would already be on 7.0 but I guess even FTNT is hesitate to upgrade and in fact they are still running 6.4.3 on that beast
I put it on my home 60E. First impressions so far- it works. No deal breaker crashes yet. A bunch of quality of life updates like more color schemes and snappier UI are helpful.
The migration of interfaces to zones and related features is promising and should help reduce the need to do lots of find/replace inside a config file.
I mainly wanted to try zero trust networking to see if they can live up to the hype. So far I'm severely disappointed. There is next to no documentation available on that feature and it's not obvious how exactly to set it up. The documentation available for 7.x has a bunch of typos.
I had a chance to test out the built-in ACME/Let's Encrypt cert generation and it seems to work well even for dynamic fortiddns.com or float-zone.com names, although we'll have to wait 60-90 days to ensure the auto-renewal works reliably. It's handy to have a valid cert for admin and SSL-VPN for small clients.