I have been using CloudStack for twelve years now. Also, our company uses a mixture of CloudStack 4.16 and 4.17. Also, our company is a user rather than a customer of the solution since it is open-source software.

I used the solution for about three years. I was using the latest version of the product.

I have been using CloudStack for seven years.

I have been using CloudStack for approximately three years.

I have been working with CloudStack for about nine years now.

I was using CloudStack at my old company, where I used it for about a year. I used versions 4.14 and 4.16, and 4.17.

We've used the solution for about a year. 

We have been using this solution for four years.

I've used CloudStack for three years for the private cloud environments.

Since 2013, I have been using Apache CloudStack 4.1.1.

3 years.