I've used the solution for three years.

We have been using Deep Instinct for about two years.

I have been using this solution only for a few months. 

We have been using it for close to two years.

I've been using Deep Instinct for about two years.

I have been using Deep Instinct Prevention Platform for three and a half years.

I have experience with Deep Instinct Prevention Platform for three years. Also, I am using the latest version of the solution. My company is a reseller of the solution.

We have been using Deep Instinct for eight months.

I have been using this solution for a year or so.

I have been using this solution for four months.

I have been working with Deep Instinct for approximately one year. It's a new solution in Italy that has been released for one year.

I've been using this solution for almost a year and a half.