Love love love the air threading and ease of threading the needle's! It’s bigger than my Brother Designio DZ1234 serger but they both work great. For the size of this Brother Airflow 3000 it is smoother and quieter than my smaller one. I am happy that I purchased this Brother Airflow 3000 serger and love using it. I repeat the Name and model because I have noticed some reviews do not state what the review is about and can easily be used on other reviews that have nothing to do with the product you are researching. I hope this helps someone especially with a product that is at this price point. It is a good solid machine that I feel confident will perform and run for many years as my other Brother sewing and embroidery machines do.I have had no problems with any of my Brother machines and I have had them since 2010. Seven machines in all and I used them all for various tasks and locations.