Items had arrived quickly and I was very happy with this (as I have been having issues with items arriving on time), but the issue I have is the part I had ordered the makerbot it mini+ extruder is now not operating correctly showing a waveform error in operation every time I goto print (the spring mechanism inside the extruder appears to be too weak to operate correctly after some time in use), this part is only a few weeks old and has only been run for about 50-75 hours. I'm not really impressed that I can spend $470 on a part that fails in less than a month, I'll be looking to take further steps here.