I have used Lenovo ThinkSystem DM Series within the last 12 months.

I have been using the solution for six years.

I have been using DM Series for about six years, I think.

I have been using Lenovo ThinkSystem DM Series for approximately 10 years.

I've been using the Lenovo ThinkSystem DM Series for two years.

We advice our Customers to use the solution for one year now.

We have just begun working with the DM Series.

We have been using Lenovo's ThinkSystem DM series for thirty years.

I've been using this solution for 15 years.