We use the product as our main and only Firewall/Gateway/VPN Gateway. we are in the finance sector, and we need a very reliable and robust system.
We rely heavily on the VPN system, as most of our employees are working outside the office at this time.
We also have two appliances to improve reliability, we have internet access through two ISPs configured to work simultaneously.
Our internal LAN is with duplicated network nodes that are double connected to our Check Point cluster. That way, we have full High Availability.