Avoid like the plague
I would give this a 0-star review if I could.
An entire two day's config was dropped from the system, which broke a production VPN. I contacted support to be given the run around [still looking for license details that are not provided, even though we have multiple sites with paired licenses connecting to the device in AWS].
Also I can no longer connect to AWS DNS servers from the device, which is shocking. It seems to have changed config overnight, without rebooting.
Unfortunately this is in production but I am actively looking for a replacement. This is a pile of rubbish, while having the audacity to charge a couple of grand for absolute crap.
Stay away. You have been warned. You can see all reviews since 2015 have been 1 star reviews, and a number of the others prior to that look dubious.
I have been using this for several clients. Never faced any issues.