What kind of problems do people expect to have with lesser models? I have a second hand kit build that I didn't assemble and was cheap years ago and just threw in my car seat one day to bring home, and the worst that happened was the poorly run temp sensor wires drooped and snagged on a print and pulled out. I don't even know what could go wrong or need any "tweaking" other than a drive belt someday failing. I just don't understand how any 3d printer these days could be problematic, the hardware is not really that complicated or under that much stress.
The P1S was my first 3D FDM printer, mostly because what I saw in the scene, in Makerspaces, and on YouTube before was mostly people tinkering with their other machines ('use this hotend', 'this is my grandma's secret recipie for bed adhesion issues', 're-fasten this particular nut to exactly 1.32 newton, but only if that part has been printed from ABS, instead if PETG, use 1.29 newton' ...) ... and I didn't want to work the machine, I wanted to work with the machine.
Bambu were the first that gave me the feeling 3D FDM printing has become more appliance-like, less 'spend endless hours maintaining the machine'. Sure, the Bambu also needs maintenance. But it is not the main procedure with the machine.