Cisco support is not at all suitable for this product, at least. It takes a long for them to help us with our server issues. A lot of the time, the customer support person keeps on redirecting calls to another person. They need to be well versed with the terminologies of the product they are supporting us with. Support needs a lot of improvement. Cisco Fire Linux OS, the operating system behind Cisco Firepower NGFW (formerly Sourcefire), also doesn't receive regular patches. In short, average customer service.