1. All the required tools are included

First off this printer is fast.  Really fast.  Second I ordered the MK4S Kit, then the enclosure and then MMU3.  The instructions for these builds are awesome.  Read the comments within the steps.  Some of them are valid, but some of them are noise (ie they've never built anything before and didn't read the insturctions).  Look at the pictures and read the instructions.  Don't just look at the pictures, you will miss steps.  Take your time.  It will pay off.  It will lead to your printer working correctly for the first time...  I can tell you from experience, these instructions are solid.  Don't over tighten, if you know how to build you will know what I mean.  Plastic will crack.  Screws will strip.  You will have extra screws and bolts, even if its more that the stated on the packages listed as spares.  This printer is absolutely the best printer I have purchased.  Will be purchasing more!

Recommend snack-sized zip bags to put the individual hardware bags into after opening them. It is a problem if the parts screws and nuts become mixed.

After FedEx misled me on delivery moment, the kit arrived, yeahhhh. Let's go to build. Everything looks perfectly packed and prepared.

Tallying it all up, it took about 20 hours from unboxing to first print. Definetly some frustrating moments but overall it was a lot of fun 

Still in the process of assembling my kit but really enjoying it. Some feedback regarding the pictures. When you open the image, you can't read the explanations, which has made me go back and forth many times. I have solved it by opening two browser windows side by side so I can have text and images at the same time. It would be helpful to keep the text when opening the images without needing two browser windows.