I've been sewing for over 35 years and I love this machine. I came home, sat down, worked through the book, and we instantly became best friends. As far as threading, all sergers are going to be a bit of a pain to serge unless you buy one that automatically thread. Once you do it right, once, you'll do it right forever. I also had no problems understanding the manual. The machine can keep up with me and I'm very fast. I've never had an issue with it. They do need oiled and I easily learned to do that myself, too. Oh...the first time I tried threading it, I cried, but then I learned to use the tweezers...yeah, I can be slow like that sometimes. Now, it's a walk in the park. Plus, you can buy a little tool that helps with threading even more. It's a loop, you push it through to the side your thread will be coming in, slip the thread in it, and pull...tada! Like I said, a walk in the park. It also has an adjustable pressure gauge for the foot...all you need is a screwdriver to adjust. I can't stand a machine that does not have that. It does rolled hemming, narrow hemming, picot edging. You'll have to learn to adjust the tension..it will be different for three thread or four, but the tension adjustments for the rolled hemming, narrow hemming, and picot edging are in the book. To help you set tension, set all to 4 and then make minor adjustments.