The extruder assembly is similar but needs modification to work with the Kickstarter machine I have. I made the modifications, installed, powered up and all was fine…Until the machine attempted autolevel. Fails immediately.

I have the Kickstarter edition of the M5, and the print head has been updated. The online instructions have not been updated to reflect the new mechanics, but they are close enough to work. The new print head has resolved the issues that over 800 hours of use had done to the prior head.

Overall, it is a complete, near snap-in replacement if your extruder is all messed up. Tightening the belt and getting it on the rail was the only difficult thing. The one thing I disliked is how delicate the parts cooling fan shrouds are. The bottom of one popped off when a print failed. Looks like I can super glue it back on, but what a pain.

I sent an email to support, because I didn’t received my package and pass around 10 days and don't give my an answer

Poorly designed and install guides were of no help due to differing versions of the same Extruder. Bottom v-wheel is generally inaccessible for loosening/tightening.