We have been using the solution for the past three months.

We've only recently begun to work with the solution. It's been about four or five months at this point. It hasn't even been a year just yet. We're still currently rolling it out.

I have been using Cloudability for the past 7 months. 

I used Cloudability from 2018 - 2023, and then transferred to another company.

I have been using the product for three years. 

I have been using Cloudability for a year. I am a customer of the product.