What is that 2 color/ filaments? Just saying the standards of today are and have been the 3 filament mixing extruder a.k.a. diamond hotend, the 4 color/filament kracken, and the 5 filament Prusa Research MMU2S. To spend $$$ here at the end of 2019 on a dual color FDM printer is just a waste. Just because there is so much better out that has been out and come down in price. We can have great things for an affordable price today. So then if we are not buying a Prusa MK3 with MMU2S then we should just buy a single extruder printer, save that money, and then go buy the diamond hotend, the kracken, or the Prusa Research MMU2S and apply it to that printer. Otherwise we might waste money on something the rest of the world will be doing as we move towards and into 2020.