I have been looking at 3D printers for about a year before finally purchasing the Creality Ender 3 Pro. It took me about 12 hour to put it together and another 15 minutes to adjust the guide rollers. I have been in the Maintenance field for the past 30 plus years so it wasnt a challenge for me. I powered up the unit and printed the sample print of a pig that is on the memory stick. I was impressed with the print quality using a spool of PLA. I have since printed about 20 items from a bracket to wall mount a WiFi router to replacement antique pull knobs for my wifes antique dresser. This printer hasnt let me down yet. I have only printed with PLA so far but will soon be attempting to use other materials. I especially like the removable bed plate that makes removing your print very simple and not needing to use a putty knife. I have also found that I havent had any problems with prints breaking loose from the bed while printing. I did a fair amount of online learning about setting up printing parameters before I received this printer which Im sure helped with my success. I do recommend the Ender 3 Pro for a first printer purchase