I have the original UM2 E+ and i have JennyPrinter its call Z360 Dual its exactly the same
print Quality is same , speed , software Cura or and other option , electric board is clone to "Arduino Mega 2560" and the funny thing it accept UM original firmware , and works with Arduino environment .
Price 800 something USD
will i recommend yes if you only can't afford UM.
Cheers