Bambu it is more likely to be hassle free and have better support. The ender is very old tech now, heck Bambu is falling behind as well, but still it is far more advanced.
For Beginners: Choose Ender 3 V3 SE for simplicity and cost-effectiveness.
For Advanced Users: Choose Ender 3 V3 KE(for greater material flexibility and customizability) or the latest Ender 3 v3 (for high-speed printing and modern features) or Ender 3 v3 Plus for larger prints
For Professionals: Choose Bambu Lab A1 for speed, automation, and superior performance.
Bed slingers are OK (usually work fine and print good enough for most things) and cheap but if you can afford more then a core X-Y is a better choice. My K1 Max prints better then my old E3V2 and six times faster without pushing it’s capabilities.
It is important to remember that ALL printers have a learning curve and will need repairs at some point. This is not negotiable.