I have been working with the product for one and a half years. 

I've been using the solution for six years.

I have been working with Huawei Enterprise Routers for more than 10 years.

We have been using Huawei Enterprise Routers since November 2022.

I have been working with Huawei Enterprise Routers for two and a half years.

I've been using the solution for about last 4 years. 

I first started working with Huawei Enterprise Routers five years ago, and I used it six months ago for a project I was working on.

I was working with version 6280.

I have been using Huawei Enterprise Routers for four years. 

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

I've been using this solution for three years. 

We have been using Huawei Enterprise Routers for one year.

We have been using the solution for three years.

We have been using Huawei Enterprise Routers for two to five years.

Currently, we've been testing the solution. We've been testing it for one month now.

I have been using Huawei Enterprise Routers for approximately one year.

I have been using the solution for approximately three years.

I have been working with the product for two years. 

We have been using the solution for three to four years.

I've been using this solution for three years. 

I have been using Huawei Enterprise Routers for more than four years.

I have been using the solution for two months.

We have been using Huawei Enterprise Routers for three to four years.