The hot end is not difficult to change, but it takes time! Treading the wires through the mesh and removing the glue they use on the connectors are the two worst parts of the job. Other than that the part is easy to replace, fits perfectly! A bit expensive, so try to keep your hot end clean and do not shut down your fans while the still in heating mode...

Official Creality Products are always the best

This hot end came completely assembled and ready to install. Even the Bowden tube was fitted. Simply bolt in place, connect wires, and ready to go. Works very well.