I was able to assemble my Ender 5 Plus in about an hour or so. The instructions could be more detailed but most parts are pretty obvious. There needs to be more on mechanical alignment and making sure the bowden tubes are connected firmly. I watched a few of the many videos on YouTube and got the bed very level. I did upgrade the firmware with the update from Kersey Fabrications that fixes the BL Touch automatic leveling process to make it sense the bed more squarely. My first print came out great except the bowden tube popped out and I had to figure out how to make sure it was connected firmly. I see you can make it quieter but I don't think it is that loud. This printer is very accurate. Printing happily :-)