I've been using Asana for four years.

I have been using the solution for three years.

I have been using Asana for approximately five years.

I've used the solution for two plus years.

I have been using Asana for almost six years.

I have been using Asana for a year and a half. Also, I believe that I am using the solution's latest version. Specifically speaking, it is a cloud-based version.

I have been using Asana for a year. I am a customer of the solution.

I have been using Asana for a year and a half. I use the solution's latest version.

I've been using the solution for less than a year - 11 months or ten months, probably.

I have been using this solution for a year and a half. 

Nine months.

I have been using Asana for about six months.

I have been using Asana within the last 12 months.

I have been using Asana for five years.

I've been using the solution for three months. 

I have been using the solution for eight months.

We have been using this solution for six years. 

A few weeks ago I started to use the Asana project management tool.

I have been using Asana for the last three months.

I have been using this solution for four months.

I've been using Asana for three years.

I have been using this solution for a couple of years.

I have been using Asana for two and a half years. I am just a user of the solution.

I used it on a client engagement three years ago, and have recently adopted it for our internal project. I've been using it again for two months.

I've used the solution for two years.

I have been using Asana for approximately five years.

I have used Asana within the past 12 months.

I have been using Asana for approximately two weeks.

I've been using the solution for seven or eight months.

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

I have been using Asana for more than one year.

One year.

I have been using this solution for 18 months.

5 years

I'm using Asana for more than a year

I have used it for one year.