I've SE2015 licence…
Bought a new iMac 27", migrated from MBP2012.
but Hight Sierra not supported OS for SE2015.
I've ordered SE2018, downloaded, and installed to iMac27 and MBP too. Tried demo version.
You can see the difference. The 6 years old MBP 5x faster, than new iMac. Tried all hardver testing. Installed Windows 10 to iMac (brrrrrr), and on win running archicad very fast.
