Fortinet.
They are great but their management team are something of a bunch of hoarders.
What do I mean by hoarders.
They have 100+ models of firewalls.
1 Gbps
1.2 Gpb
1.5 Gbps
1.6 Gbps old
1.6 Gbps new
etc, etc.
{no logical person can explain the need for 100+ firewalls}
You would figure by now they would get their act together and End of Life some of the products.
Their old C , they have C and D firewalls so their old C firewalls don't even support IPv6 and they are still selling them
for the same price as the D which support IPv6.
{No logical person can explain why keep an IPv4 only firewall if the IPv4/IPv6 is the same price}
They also do marketing magic on their numbers.
This means if you turn on application detection.
It goes into a second engine called "flow-based inspection engine"
and any similarity to the numbers on the datasheet is gone.
{open statement, there are no public numbers on their performance with app}
Management
Their management is a little clunky, I also know 1/3 of their items can only be accessed by CLI .
Like AV quarantine. The last thing you need in life is some manager telling you a file did not arrive
and having to search for it in CLI.
I am not an expert in them, but if you do go for them ask them for a list of what is managed by GUI and what by CLI.
{seeds}
Since fortinet scores high. This is the best.