Lenovo ThinkCentre M91p is my dual monitor workstation in the office. It came with Windows 7 Pro when I got it years ago. Due to some sicking of dealing with stupid tools reason, I decided switch to RHEL 7.2 which more support than Ubuntu/Debian by our community.
My ThinkPad T420 still has Ubuntu 14.04 installed and works well.
This is not too much different when mainly using terminal from those linux distributions to connect to testing environment.