I have been working with it for approximately six months.

I have been working with OPNsense for the past five years. 

I've been using the solution for ten years. 

I have been using this solution for three years.

I have been using OPNsense for a few days. We use the updated version of the solution.

I have been using this solution for about four years, and I am using the latest version, OPNsense 21.

I have been using OPNsense for approximately six years.

I have been using the solution for the past two months.

I have been using OPNsense for more than six years. I currently use the latest version.

We started using OPNsense in the last three or four years. Now they are pretty mature.

When we demonstrated this software and the firewall, the main thing is the customer's confidence.

If I remember correctly, it was 19.x version.

Within our own company, we have been using it for three or four years as an appliance, and on Azure, we have been using it for three months.

I have been using this solution for five years. I am using the latest version now.

I have been using OPNsense for five months.

I have been using OPNsense for around six years. Also, I don't remember the version of the solution I am using.

I used OPNsense within the last 12 months.

I have been using OPNsense for one year. 

I have been working with OPNsense for about three years. I use it both in my company and at home.

We have been using this solution for about three years and are using the latest version. It is deployed on-premises.

I've been using OPNsense for more than one year.

I have been using OPNsense for a year.

I have been working with OPNsense since 2008.

Internally we are using the latest version. 

I have been using this solution for two years.

I have been using OPNsense for upwards of ten years. 

I have been using it for half a year. 

I have been working with OPNsense for approximately one year.

I started to use OPNsense about three years ago.

I've been using the solution for a year or two.

I've been using the solution for 6 months.

We've used OPNSense over the last six months.

I have been using OPNsense for approximately one year.

I have been using it for the last year and a half. 

I have been using OPNsense for approximately 10 months.

We have been using OPNsense [Stands for: "Open (source) makes sense."] for about one year.