I have never used a serger and was afraid of threading it. I watched a lot of youtube while I was waiting for the machine to come and helped a lot on everything. First thing before you use it oil it, it tells you to oil it before you use it but it's at the end of the instruction book. Read the instruction book first before you use it too. Ok for the treading it's really easy after a few times of treading. I sat my chrome book in front of me with while I threaded it. I haven't tried all the stitches yet just been using with my other brother sewing machine making masks, microwave cozy's and potatoe bags.