MakerGear M2, Rev. E
I opted for the pre-built M2, Rev. E. Setup was a breeze, and I was producing successful high-quality prints in a short time. I had the total opposite experience with a Wanhao Duplicator i3 Plus; which required consistent babysitting and bed leveling antics.
I'm using Simplify3D as my slicer, and I've had absolutely no print failures. I have an extra glass build plate, and make sure to never try to remove a finished print from the build plate while it is affixed to the printer. Otherwise, all I do is make sure that the build plate is clean. No build plate sticking issues with PLA or ABS. I wish I could attach some photos of the items I've printed. The quality is truly impressive.