I am really enjoying Ubuntu 18.04 and have been using it for the last month. Even though the official release comes out this week. I do miss Unity in this release but Gnome 3.28 is a much better desktop that is my opinion than Unity. It does seem to respond a lot faster, and I have not seen hardly any errors. I have been playing a lot of games, mostly 7 days to die, and using Blender 2.79b. Those programs have been working with no problems so far. I do feel that transitioning from 16.04 to 18.04 would be an easy process at this point.