To change the needle on the machine, flawless, although it is so easy that essentially no assistance is needed.
As for the needle threader... ????
First of all, I had to find a video on YouTube to understand how to use it (and I'm not completely stupid). You place the thread in a specific way, touch the attachment high on the needle and gently bring it down. When it reaches the needle hole, the metal part passes through along with the thread and voila, it's threaded. Sounds nice and easy, right?
Oh no! The metal attachment goes either right, left, higher, or lower, but never inside. On the first day, I said, okay, I got annoyed, I'll try again tomorrow.
Guys, honestly, I don't know how the lady on YouTube does it! Could mine be defective? I don't think it's worth buying a second one to see if it's my fault, considering the price.
If you want to keep your nerves in place... stay away!!