as a BETA tester, the issues I found were (in the original peachy the connections to the coils not being preactical for an ordinary person fix was to put coils on boards with pin headers) and two managed to break one of the coil board holders on the armature assembly, possible re-design of armature assembly to stregthen the suoorts for the coils).
I have not actually used the peachy for printing so have NO test prints as I will not connect the peachy till I have designed and constructd an adequatly laser tight(and water tight) cabinet for the printer as I do NOT want ANY salt water getting to ANY of my computers