I started with a Flashforge Dreamer - which is relatively close to the Creator Pro. Bed leveling was annoying from the beginning - though after adding some locking nuts at least stayed leveled for a while.
With PLA I was getting good prints without much effort - though quicky ran into limitations with flashprint, build volume size, other materials. I did some PETG printing, which was a pain - extruder slipping on the material, so compensating with overextrusion which somewhat worked, but gave nad tolerances.
It is now my experimentation printer -rebuilt with microswiss hotend and extruder and flashed with marlin.