I have been using the product for 13 years. 

I have been using FireEye Network Security for approximately two years.

I have been using Trellix Network Detection and Response for two to three years. I use the solution's latest version.

I've used the solution for a few years. 

I have been using the solution for about a year.

We have been working with FireEye Network Security for one year.

We've been using the solution for six to eight years, since 2014. 

I have been using it for 3-4 years.

I've been using this solution for four years. 

I have been working with FireEye for about three years.

I have been using FireEye Network Security for a couple of years.

We are using the latest version.

We have been using FireEye for a couple of years.

I've been using FireEye NX with web, email, and the malware analysis sandbox tool for two years.

I have worked on these products from FireEye for three different projects, and I found them wonderful.

I've used it for one year.