I bought the stock Ender 3 and use ABS filament. No mods, no special boards, just plain vanilla. I last adjusted my print bed about 4 months ago and have not touched it since. My only addition was Octaprint which is a Raspberry Pi that connects to the printer with a USB cable. It lets you drop files into your printer from your desktop computer over wifi. I also have a resin printer. The Halot One, another Creality machine. It has built-in wifi. Resin is not as bad as they say but it is messy and you have to wash the finished parts in alcohol and then expose the part to UV light to 'cure' it. But the detail is quite amazing. I used the Ender 3 to make things like steel plates with rivets, coupler jigs, switch machines, structural sorts of parts. ABS is quite strong. For figures and details, I use the resin printer.