I've used Spring Boot for three years.

I have been using Spring Boot for approximately 10 years.

I have been using the solution for five years.

We have been using the solution for ten years.

I have used this solution for five years.

I have been using this solution for more than five years. 

We have been using the solution for more than three years.

I have been using this solution for five years. 

We have been using Spring Boot for two years. 

I have been using the solution for three years.

I have been using Spring Boot for three years.

I have been using Spring Boot for five years.

I've used the solution for several years.

We've been using the solution for five or six years. I've used it for a while now. 

I've been using Spring Boot for the past two years.

We have been using this solution for about two years. It is cloud-based.

I have been using Spring Boot for approximately one year.

I've been using Spring Boot for three and a half years now.

I have some experience with the solution. My teams have worked with it for a bit longer.

We've been using Spring Boot for around six years. 

I have been using the solution for three years.

I've been using the solution for eight to nine years. 

I've been using the solution for four to five years at this point. 

We have used this solution for one year.

I have been using Spring Boot for eight years. I am just a user of the product.

I've been using the solution for about three years. 

I have been using Spring Boot for approximately four years.

I have been using Spring Boot for approximately two years.

I've been using this solution for about seven years. 

I have been using Spring Boot for approximately five years.

We have been using Java Spring Boot for more than 3 and a half years.

I have been using Spring for around ten years, but I haven't used Spring MVC much, though I have used the other parts of the solution's framework. Regarding the version, I am using Spring 5.1. I am a user of the solution.

I've been using the solution for two years. 

I've been using Spring Boot since 2003 when the framework was created.

I have been using Spring Boot for four years. This is a cloud-based solution, deployed on AWS.

I have been using Spring Boot for the last three or four years.