I have been using Bitrix24 for two years.

I have been using Bitrix24 for more than five years, closer to 10. 

I have been using Bitrix24 for the past three years.

I have been using Bitrix24 for two years. Also, I am using the Bitrix24 On-premise Edition meant for enterprise users. I am a user of the solution.

I have been working with Bitrix24 for the past four years.

It's the most recent version because it's on the cloud and is constantly updated.

I have been using Bitrix24 for two weeks.

I started using Bitrix24 in 2020.

I've been using the solution for three years. 

I have been using Bitrix24 for two to three years.

I've been working with this solution for two and a half years.

We used this solution for about four years. It was deployed on cloud and hosted by Bitrix.

I have been using Bitrix24 for about three months.

I've used the solution for three years.

We have been using this solution for ten years. 

I have been using the product for ten months. 

We have been using Bitrix24 for the past three years.

I have been working with Bitrix24 for four months.