I received one as a gift and for me -- I love it. I have a bobbin box that holds 25 bobbins I have some regularly used colors spun on about half of them. The other half is white/cream threads for my all purpose piecing stuff. I use the larger spools of thread (3" ones that hold a ton of thread) which I put on a pencil to spin a lot at one time. When I sit down I'm all set to go. I tend to get tunnel vision when i'm sewing and with fewer interuptions, the off I am. But that is just me. Also I can put some AA batteries when I'm going to group or I can use the cord while at home.
Tricia