QIDI Plus4 is a robust 3D printer with a large build volume, perfect for tackling large prints in challenging technical filaments such as ABS, PC, and Nylon. The printer boasts excellent build quality, but its filament loading process can be cumbersome, making it more suitable for business-minded practical printing than for home hobbyists.

The Plus4 comes with a heated chamber that reaches up to 370°C, allowing it to handle high-temperature materials with ease. It features a Klipper firmware with a Fluidd interface, which is known for its smooth operation and advanced features. The printer also includes a built-in camera for monitoring prints and creating timelapses.

While the Plus4 excels in engineering filaments, it does have its drawbacks. The filament loading process can be challenging, and the printer is not the most user-friendly for those new to 3D printing. However, its performance with materials like TPU, PA12 Carbon Fiber, and PLA is impressive, producing high-quality prints with minimal layer lines.

Overall, the QIDI Plus4 is a great choice for those looking for a high-quality 3D printer with a large build volume and advanced features. It may not be the best choice for home hobbyists due to its price and complexity, but for businesses and professionals in need of precise and durable prints, the Plus4 is a solid investment.