I've been dealing with the solution for almost two years at this point. It hasn't been too long.

I have been using IBM Control Desk since 2012. 

I've been using IBM SmartCloud Control Desk for ten years now. I started using the solution in 2012.

We have been using IBM SmartCloud Control Desk for about eight years.

More then 10 years.We started from 7.2 version.

I have been using IBM SmartCloud Control Desk for the last 13 years.

I have been using this solution for around a year.

I've been using the solution for about a year at this point. It hasn't been that long just yet. The solution is still fairly new.